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Document and Entity Information - shares	6 Months Ended
Document and Entity Information - shares	Dec. 31, 2015	Jan. 31, 2016
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Dec. 31, 2015
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q2
Trading Symbol	MRCY
Entity Registrant Name	MERCURY SYSTEMS INC
Entity Central Index Key	0001049521
Current Fiscal Year End Date	--06-30
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		34,829,997

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2015	Jun. 30, 2015
Current assets:
Cash and cash equivalents	$ 81,554	$ 77,586
Accounts receivable, net of allowance for doubtful accounts of $52 and $56 at December 31, 2015 and June 30, 2015, respectively	35,468	31,765
Unbilled receivables and costs in excess of billings	24,645	22,021
Inventory	36,707	31,960
Deferred income taxes	12,363	12,407
Prepaid income taxes	2,880	3,747
Prepaid expenses and other current assets	5,361	8,678
Total current assets	198,978	188,164
Restricted cash	264	264
Property and equipment, net	13,324	13,226
Estimated fair value of goodwill	173,749	168,146
Intangible assets, net	18,608	17,998
Other non-current assets	3,169	2,190
Total assets	408,092	389,988
Current liabilities:
Accounts payable	11,858	6,928
Accrued expenses	8,719	9,005
Accrued compensation	11,409	9,875
Deferred revenues and customer advances	9,406	7,477
Total current liabilities	41,392	33,285
Deferred gain on sale-leaseback	350	929
Deferred income taxes	2,287	3,108
Income taxes payable	1,505	1,459
Other non-current liabilities	1,100	1,069
Total liabilities	46,634	39,850
Commitments and contingencies (Note I)
Shareholders' equity:
Preferred stock, $0.01 par value; 1,000,000 shares authorized; no shares issued or outstanding	0	0
Common stock, $0.01 par value; 85,000,000 shares authorized; 33,240,461 and 32,570,959 shares issued and outstanding at December 31, 2015 and June 30, 2015, respectively	332	326
Additional paid-in capital	259,140	254,568
Retained earnings	101,221	94,468
Accumulated other comprehensive income	765	776
Total shareholders' equity	361,458	350,138
Total liabilities and shareholders' equity	$ 408,092	$ 389,988

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2015	Jun. 30, 2015
Statement of Financial Position [Abstract]
Accounts receivable, allowance for doubtful accounts	$ 52	$ 56
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	85,000,000	85,000,000
Common stock, shares issued	33,240,461	32,570,959
Common stock, shares outstanding	33,240,461	32,570,959

Consolidated Statements of Operations and Comprehensive Loss - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Income Statement [Abstract]
Net revenues	$ 60,417	$ 57,089	$ 118,826	$ 111,150
Cost of revenues	31,839	30,054	62,719	60,116
Gross margin	28,578	27,035	56,107	51,034
Operating expenses:
Selling, general and administrative	12,583	12,677	24,709	24,967
Research and development	7,684	7,895	15,777	15,846
Amortization of intangible assets	1,638	1,762	3,351	3,524
Restructuring and other charges	221	1,162	559	2,430
Impairment of Intangible Assets, Finite-lived	231	0	231	0
Acquisition costs and other related expenses	(148)	0	1,980	0
Total operating expenses	22,209	23,496	46,607	46,767
Income from operations	6,369	3,539	9,500	4,267
Interest income	26	4	50	7
Interest expense	(5)	(8)	(7)	(16)
Other income, net	83	398	154	392
Income from continuing operations before income taxes	6,473	3,933	9,697	4,650
Tax provision	1,680	1,047	2,944	1,047
Income from continuing operations	4,793	2,886	6,753	3,603
Loss from discontinued operations, net of income taxes	0	(2,621)	0	(2,839)
Net income	$ 4,793	$ 265	$ 6,753	$ 764
Basic net loss per share: (in dollars per share)	$ 0.14	$ 0.09	$ 0.20	$ 0.11
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Basic Share	0.00	(0.08)	0.00	(0.09)
Earnings Per Share, Basic	0.14	0.01	0.20	0.02
Diluted net loss per share: (in dollars per share)	0.14	0.09	0.20	0.11
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Diluted Share	0.00	(0.08)	0.00	(0.09)
Earnings Per Share, Diluted	$ 0.14	$ 0.01	$ 0.20	$ 0.02
Weighted-average shares outstanding:
Basic (in shares)	33,120	32,052	33,047	31,880
Diluted (in shares)	33,831	32,686	33,819	32,720
Comprehensive income:
Net income	$ 4,793	$ 265	$ 6,753	$ 764
Foreign currency translation adjustments	(28)	(111)	(11)	(208)
Total comprehensive income	$ 4,765	$ 154	$ 6,742	$ 556

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Cash flows from operating activities:
Net income	$ 6,753	$ 764
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization expense	6,559	7,150
Stock-based compensation expense	5,094	4,933
Benefit for deferred income taxes	(894)	(1,314)
Goodwill and Intangible Asset Impairment	231	2,283
Excess tax benefit from stock-based compensation	(1,359)	(536)
Other non-cash items	(384)	(568)
Changes in operating assets and liabilities:
Accounts receivable, unbilled receivable, and cost in excess of billings	(6,254)	(7,103)
Inventory	(4,677)	1,584
Prepaid income taxes	867	(3,587)
Prepaid expenses and other current assets	3,315	(182)
Other non-current assets	(860)	291
Accounts payable and accrued expenses	7,045	4,126
Deferred revenues and customer advances	2,034	2,458
Income taxes payable	47	123
Other non-current liabilities	(39)	(16)
Net cash provided by operating activities	17,478	10,406
Cash flows from investing activities:
Cash paid at closing	9,764	0
Purchases of property and equipment	(3,156)	(2,123)
Increase in other investing activities	(185)	1
Net cash used in investing activities	(13,105)	(2,122)
Cash flows from financing activities:
Proceeds from employee stock plans	2,297	1,313
Payments for Repurchase of Common Stock	(4,124)	0
Excess tax benefits from stock-based compensation	1,359	536
Payments of capital lease obligations	0	(320)
Net cash (used in) provided by financing activities	(468)	1,529
Effect of exchange rate changes on cash and cash equivalents	63	(113)
Net increase in cash and cash equivalents	3,968	9,700
Cash and cash equivalents at beginning of period	77,586	47,287
Cash and cash equivalents at end of period	81,554	56,987
Cash paid (received) during the period for:
Interest	7	16
Income taxes	1,759	5,512
Supplemental disclosures-non-cash activities:
Issuance of restricted stock awards to employees	$ 8,241	$ 8,832

Description of Business	6 Months Ended
Description of Business	Dec. 31, 2015
Accounting Policies [Abstract]
Description of Business	Description of Business Mercury Systems, Inc. (the "Company" or "Mercury") is a leading commercial provider of secure processing subsystems designed and made in the U.S.A. Optimized for customer and mission success, Mercury's solutions power a wide variety of critical defense and intelligence programs. Headquartered in Chelmsford, Massachusetts, Mercury is pioneering a next-generation defense electronics business model specifically designed to meet the industry's current and emerging technology needs. The Company delivers innovative solutions, rapid time-to-value and service and support to its defense prime contractor customers. The Company’s products and solutions have been deployed in more than 300 programs with over 25 different defense prime contractors. Key programs include Aegis, Patriot, Surface Electronic Warfare Improvement Program ("SEWIP"), Gorgon Stare, Predator, F-35 and Reaper. The Company’s organizational structure allows it to deliver capabilities that combine technology building blocks and deep domain expertise in the defense sector. The Company's goal is to grow and build on its position as a critical component of the defense industrial base and become the leading provider of affordable secure processing subsystems. The Mercury Commercial Electronics (“MCE”) operating segment designs, develops and builds open sensor processing products and subsystems that include embedded processing modules and subsystems, radio frequency (“RF”) and microwave multi-function assemblies as well as subsystems, and RF and microwave components. The Mercury Defense Systems (“MDS”) operating segment provides significant capabilities relating to pre-integrated, open, affordable electronic warfare ("EW"), electronic attack ("EA") and electronic counter measure ("ECM") subsystems, significant capabilities in signals intelligence ("SIGINT"), electro-optical/infrared ("EO/IR") and secure processing technologies, and radar environment test and simulation systems. In June 2014, the Company initiated a plan to divest the Mercury Intelligence Systems (“MIS”) operating segment, based on the Company's strategic direction and investment priorities focusing on its core business. On January 23, 2015, the Company completed the sale of the MIS operating segment. See Note M to consolidated financial statements.

Summary of Significant Accounting Policies

6 Months Ended

Dec. 31, 2015

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

BASIS OF PRESENTATION

The accompanying consolidated financial statements have been prepared by the Company in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and with the instructions to the Form 10-Q and Article 10 of Regulation S-X. Certain information and footnote disclosures, normally included in annual consolidated financial statements have been condensed or omitted pursuant to those rules and regulations; however, in the opinion of management the financial information reflects all adjustments, consisting of adjustments of a normal recurring nature, necessary for fair presentation. These consolidated financial statements should be read in conjunction with the audited consolidated financial statements and related notes for the fiscal year ended June 30, 2015 which are contained in the Company’s Annual Report on Form 10-K filed with the Securities and Exchange Commission (“SEC”) on August 13, 2015. The results for the three and six months ended December 31, 2015 are not necessarily indicative of the results to be expected for the full fiscal year.

The Company is comprised of the following operating segments: MCE and MDS. See Note L of the Notes to consolidated financial statements for further discussion.

The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All intercompany transactions and balances have been eliminated in consolidation.

BUSINESS COMBINATIONS

The Company utilizes the acquisition method of accounting under FASB ASC 805, Business Combinations, (“FASB ASC 805”), for all transactions and events which it obtains control over one or more other businesses, to recognize the fair value of all assets and liabilities acquired, even if less than one hundred percent ownership is acquired, and in establishing the acquisition date fair value as the measurement date for all assets and liabilities assumed. The Company also utilizes FASB ASC 805 for the initial recognition and measurement, subsequent measurement and accounting, and disclosure of assets and liabilities arising from contingencies in business combinations.

USE OF ESTIMATES

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the dates of the financial statements and the reported amounts of revenues and expenses during the reporting periods. Actual results could differ from those estimates.

REVENUE RECOGNITION

The Company relies upon FASB ASC 605, Revenue Recognition to account for its revenue transactions. Revenue is recognized upon shipment provided that title and risk of loss have passed to the customer, there is persuasive evidence of an arrangement, the sales price is fixed or determinable, collection of the related receivable is reasonably assured, and customer acceptance criteria, if any, have been successfully demonstrated. Out-of-pocket expenses that are reimbursable by the customer are included in revenue and cost of revenue.

Certain contracts with customers require the Company to perform tests of its products prior to shipment to ensure their performance complies with the Company’s published product specifications and, on occasion, with additional customer-requested specifications. In these cases, the Company conducts such tests and, if they are completed successfully, includes a written confirmation with each order shipped. As a result, at the time of each product shipment, the Company believes that no further customer testing requirements exist and that there is no uncertainty of acceptance by its customer.

The Company uses FASB Accounting Standards Update (“ASU”) No. 2009-13 (“FASB ASU 2009-13”), Multiple-Deliverable Revenue Arrangements. FASB ASU 2009-13 establishes a selling price hierarchy for determining the selling price of a deliverable, which includes: (1) vendor-specific objective evidence (“VSOE”) if available; (2) third-party evidence (“TPE”) if VSOE is not available; and (3) best estimated selling price (“BESP”), if neither VSOE nor TPE is available. Additionally, FASB ASU 2009-13 expands the disclosure requirements related to a vendor’s multiple-deliverable revenue arrangements.

The Company enters into multiple-deliverable arrangements that may include a combination of hardware components, related integration or other services. These arrangements generally do not include any performance-, cancellation-, termination- or refund-type provisions. Total revenue recognized under multiple-deliverable revenue arrangements was 36% and 42% of total revenues in the three and six months ended December 31, 2015, respectively. Total revenue recognized under multiple-deliverable revenue arrangements was 26% and 28% of total revenues in the three and six months ended December 31, 2014, respectively.

In accordance with the provisions of FASB ASU 2009-13, the Company allocates arrangement consideration to each deliverable in an arrangement based on its relative selling price. The Company generally expects that it will not be able to establish VSOE or TPE due to limited single element transactions and the nature of the markets in which the Company competes, and, as such, the Company typically determines its relative selling price using BESP. The objective of BESP is to determine the price at which the Company would transact if the product or service were sold by the Company on a standalone basis.

The Company's determination of BESP involves the consideration of several factors based on the specific facts and circumstances of each arrangement. Specifically, the Company considers the cost to produce the deliverable, the anticipated margin on that deliverable, the selling price and profit margin for similar parts, the Company’s ongoing pricing strategy and policies (as evident from the price list established and updated by management on a regular basis), the value of any enhancements that have been built into the deliverable and the characteristics of the varying markets in which the deliverable is sold.

The Company analyzes the selling prices used in its allocation of arrangement consideration at a minimum on an annual basis. Selling prices will be analyzed on a more frequent basis if a significant change in the Company’s business necessitates a more timely analysis or if the Company experiences significant variances in its selling prices.

Each deliverable within the Company’s multiple-deliverable revenue arrangements is accounted for as a separate unit of accounting under the guidance of FASB ASU 2009-13 if both of the following criteria are met: the delivered item or items have value to the customer on a standalone basis; and for an arrangement that includes a general right of return relative to the delivered item(s), delivery or performance of the undelivered item(s) is considered probable and substantially in the control of the Company. The Company's revenue arrangements generally do not include a general right of return relative to delivered products. The Company considers a deliverable to have standalone value if the item is sold separately by the Company or another vendor or if the item could be resold by the customer.

Deliverables not meeting the criteria for being a separate unit of accounting are combined with a deliverable that does meet that criterion. The appropriate allocation of arrangement consideration and recognition of revenue is then determined for the combined unit of accounting.

The Company also engages in long-term contracts for development, production and services activities which it accounts for consistent with FASB ASC 605-35, Accounting for Performance of Construction-Type and Certain Production-Type Contracts, and other relevant revenue recognition accounting literature. The Company considers the nature of these contracts and the types of products and services provided when determining the proper accounting for a particular contract. Generally for fixed-price contracts, other than service-type contracts, revenue is recognized primarily under the percentage of completion method or, for certain short-term contracts, by the completed contract method. Revenue from service-type fixed-price contracts is recognized ratably over the contract period or by other appropriate input or output methods to measure service provided, and contract costs are expensed as incurred. The Company establishes billing terms at the time project deliverables and milestones are agreed. The risk to the Company on a fixed-price contract is that if estimates to complete the contract change from one period to the next, profit levels will vary from period to period. For time and materials contracts, revenue reflects the number of direct labor hours expended in the performance of a contract multiplied by the contract billing rate, as well as reimbursement of other billable direct costs. For all types of contracts, the Company recognizes anticipated contract losses as soon as they become known and estimable.

The Company also considers whether contracts should be combined or segmented in accordance with the applicable criteria under GAAP. The Company combines closely related contracts when all the applicable criteria under GAAP are met. The combination of two or more contracts requires judgment in determining whether the intent of entering into the contracts was effectively to enter into a single project, which should be combined to reflect an overall profit rate. Similarly, the Company may separate a project, which may consist of a single contract or group of contracts, with varying rates of profitability, only if the applicable criteria under GAAP are met. Judgment also is involved in determining whether a single contract or group of contracts may be segmented based on how the arrangement was negotiated and the performance criteria. The decision to combine a group of contracts or segment a contract could change the amount of revenue and gross profit recorded in a given period.

The use of contract accounting requires significant judgment relative to estimating total contract revenues and costs, including assumptions relative to the length of time to complete the contract, the nature and complexity of the work to be performed, anticipated increases in wages and prices for subcontractor services and materials, and the availability of subcontractor services and materials. The Company’s estimates are based upon the professional knowledge and experience of its engineers, program managers and other personnel, who review each long-term contract monthly to assess the contract’s schedule, performance, technical matters and estimated cost at completion. Changes in estimates are applied retrospectively and when adjustments in estimated contract costs are identified, such revisions may result in current period adjustments to earnings applicable to performance in prior periods.

Contract costs also may include estimated contract recoveries for matters such as contract changes and claims for unanticipated contract costs. The Company records revenue associated with these matters only when the amount of recovery can be estimated reliably and realization is probable.

The Company defines service revenues as revenue from activities that are not associated with the design, development, production, or delivery of tangible assets, software or specific capabilities sold. Examples of the Company's service revenues include: analyst services and systems engineering support, consulting, maintenance and other support, testing and installation. The Company combines its product and service revenues into a single class as service revenues are less than 10 percent of total revenues.

The Company does not provide its customers with rights of product return, other than those related to warranty provisions that permit repair or replacement of defective goods. The Company accrues for anticipated warranty costs upon product shipment. Revenues from product royalties are recognized upon invoice by the Company. Additionally, all revenues are reported net of government assessed taxes (e.g. sales taxes or value-added taxes).

WEIGHTED-AVERAGE SHARES

Weighted-average shares were calculated as follows:



	Three Months Ended December 31,		Six Months Ended December 31,
	2015	2014	2015	2014
Basic weighted-average shares outstanding	33,120	32,052	33,047	31,880
Effect of dilutive equity instruments	711	634	772	840
Diluted weighted-average shares outstanding	33,831	32,686	33,819	32,720

Equity instruments to purchase 2 and 25 shares of common stock were not included in the calculation of diluted net earnings per share for the three and six months ended December 31, 2015 because the equity instruments were anti-dilutive. Equity instruments to purchase 654 and 740 shares of common stock were not included in the calculation of diluted net earnings per share for the three and six months ended December 31, 2014 because the equity instruments were anti-dilutive.

Acquisitions

6 Months Ended

Dec. 31, 2015

Business Combinations [Abstract]

Acquisitions

LEWIS INNOVATIVE TECHNOLOGIES ACQUISITION

On December 16, 2015, the Company entered into a share purchase agreement (the “Share Purchase Agreement”) with Lewis Innovative Technologies, Inc. (“LIT”) and the holders of the equity interests of LIT. Pursuant to the Share Purchase Agreement, the Company completed its purchase of all of the equity interests in LIT, and LIT became a wholly-owned subsidiary of the Company. Based in Decatur, Alabama, LIT provides advanced security technology and development services necessary for protecting systems critical to national security while meeting strict Department of Defense (“DoD”) program protection requirements. LIT is included in the MDS operating segment.

The Company acquired LIT for a cash purchase price of $9,764. The Company funded the purchase with cash on hand. The purchase price was subject to a post-closing adjustment based on a determination of LIT's closing net working capital. In accordance with the Share Purchase Agreement, $1,000 of the purchase price was placed into escrow to support the post-closing working capital adjustment and the sellers' indemnification obligations. The escrow is available for indemnification claims through June 16, 2017. The Company acquired LIT free of bank debt.

The following table presents the net purchase price and the preliminary fair values of the assets and liabilities of LIT:



	Amounts
Consideration transferred
Cash paid at closing	$	10,290
Working capital adjustment	(236		)
Less cash and cash equivalents acquired	(290		)
Net purchase price	$	9,764

Estimated fair value of tangible assets acquired and liabilities assumed
Cash and cash equivalents	$	290
Accounts receivable and cost in excess of billings	290
Other current and non-current assets	175
Current liabilities	(264		)
Estimated fair value of net tangible assets acquired	491
Estimated fair value of identifiable intangible assets	3,960
Estimated fair value of goodwill	5,603
Estimated fair value of assets acquired	10,054
Less cash and cash equivalents acquired	(290		)
Net purchase price	$	9,764

The amounts above represent the preliminary fair value estimates as of December 31, 2015 and are subject to subsequent adjustment as the Company obtains additional information during the measurement period and finalizes its fair value estimates. The preliminary identifiable intangible asset estimates include completed technology of $3,240, customer relationships of $590 and backlog of $130. Any subsequent adjustments to these fair value estimates occurring during the measurement period will result in an adjustment to goodwill or income, as applicable.

The goodwill of $5,603 arising from the LIT acquisition largely reflects the potential synergies and expansion of the Company's service offerings across product segments and markets complementary to the Company’s existing products and markets. The LIT acquisition provides the Company with additional capabilities and expertise related to secure embedded processing applications. The acquisition is directly aligned with the Company's strategy of assembling critical and differentiated capabilities across the entire sensor processing chain. The goodwill from the LIT acquisition is included in the Company's MDS reporting unit.

The Company and the shareholders of LIT have agreed to treat the acquisition of LIT as an asset purchase for tax purposes by filing the required election forms under IRC Section 338(h)(10). The Company has estimated the tax value of the intangible assets from this transaction and is amortizing the amount over 15 years for tax purposes. As of December 31, 2015, the Company had $5,603 of goodwill deductible for tax purposes.

The Company's consolidated results for the three and six months ended December 31, 2015 include $30 and $(40) of revenue and net loss, respectively, for LIT's operating results between the acquisition date and December 31, 2015. Pursuant to the completion of the LIT acquisition, the Company incurred $231 of impairment expense related to a pre-existing relationship. LIT acquisition costs and other related expenses were immaterial during the three and six months ended December 31, 2015. Additionally, the Company has not furnished pro forma financial information relating to LIT because such information is not material to the Company's financial results.

- Definition

The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable).

+ References

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+ Details

Discontinued Operations

6 Months Ended

Dec. 31, 2015

Discontinued Operations and Disposal Groups [Abstract]

Discontinued Operations

During the third quarter of fiscal 2015, the Company completed the sale of the MIS operating segment. The MIS operating results have been reported as a discontinued operation for all periods presented. The Company does not have continuing involvement in the operations of MIS after its divestiture.

The amounts reported in loss from discontinued operations, net of income taxes were as follows:



	Three Months Ended December 31,			Six Months Ended December 31,
	2014			2014
Net revenues of discontinued operations	$	1,321		$	3,160
Costs of discontinued operations:
Cost of revenues	951			2,176
Selling, general and administrative	600			1,247
Research and development	105			276
Amortization of intangible assets	124			248
Acquisition costs and other related expenses	76			109
Impairment of goodwill	2,283			2,283
Loss from discontinued operations before income taxes	(2,818		)	(3,179		)
Tax benefit	(197		)	(340		)
Loss from discontinued operations, net of income taxes	$	(2,621	)	$	(2,839	)

There were no balances for the assets and liabilities of the discontinued operations for the periods ending December 31, 2015 and June 30, 2015.

The depreciation, amortization, and significant operating and investing non-cash items of the discontinued operations were as follows:



	Three Months Ended December 31,		Six Months Ended December 31,
	2014		2014
Depreciation	$	45	$	89
Amortization of intangible assets	$	124	$	248
Impairment of goodwill	$	2,283	$	2,283
Stock-based compensation expense	$	62	$	126

- Definition

The entire disclosure for the facts and circumstances leading to the completed or expected disposal, manner and timing of disposal, the gain (loss) recognized in the income statement and the income statement caption that includes that gain (loss), amounts of revenues and pretax profit or loss reported in discontinued operations, the segment in which the disposal group was reported, and the classification (whether sold or classified as held for sale) and carrying value of the assets and liabilities comprising the disposal group. Includes all disposal groups, including those classified as components of the entity (discontinued operations).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1436-107760

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1474-107760

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1510-107760

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e957-107759

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e1020-107759

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e1012-107759

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=8077374&loc=d3e2443-110228

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6391110&loc=d3e2941-110230

+ Details

Fair Value of Financial Instruments

6 Months Ended

Dec. 31, 2015

Fair Value Disclosures [Abstract]

Fair Value of Financial Instruments

The following table summarizes the Company’s financial assets measured at fair value on a recurring basis at December 31, 2015:



	Fair Value Measurements
	December 31, 2015		Level 1		Level 2		Level 3
Assets:
Cash and cash equivalents	$	51,529	$	51,529	$	—	$	—
Certificates of deposit	30,025		—		30,025		—
Restricted cash	264		264		—		—
Cost-method investment	500		—		—		500
Total	$	82,318	$	51,793	$	30,025	$	500

The carrying values of cash and cash equivalents, including all U.S. Treasury bills and money market funds, accounts receivable and payable, and accrued liabilities approximate fair value due to the short-term maturities of these assets and liabilities. The value of the certificates of deposit is based on the quoted price for identical or similar instruments in markets that are not active or are directly or indirectly observable. The cost-method investment does not have a readily determinable fair value, as such the Company recorded the investment as a long term asset at cost and will continue to evaluate the asset for impairment.

The change of the fair value of the Company's cost-method investment is as follows:



	Fair Value
Balance at June 30, 2015	$	500
Changes in fair value	—
Balance at December 31, 2015	$	500

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Inventory

6 Months Ended

Dec. 31, 2015

Inventory Disclosure [Abstract]

Inventory

Inventory is stated at the lower of cost (first-in, first-out) or market value, and consists of materials, labor and overhead. On a quarterly basis, the Company uses consistent methodologies to evaluate inventory for net realizable value. Once an item is written down, the value becomes the new inventory cost basis. The Company reduces the value of inventory for excess and obsolete inventory, consisting of on-hand inventory in excess of estimated usage. The excess and obsolete inventory evaluation is based upon assumptions about future demand, history, product mix and possible alternative uses. Inventory was comprised of the following:



	December 31, 2015		June 30, 2015
Raw materials	$	15,994	$	15,864
Work in process	13,916		11,190
Finished goods	6,797		4,906
Total	$	36,707	$	31,960

There are no amounts in inventory relating to contracts having production cycles longer than one year.

Goodwill

6 Months Ended

Dec. 31, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill

The following table sets forth the changes in the carrying amount of goodwill by reporting unit for the six months ended December 31, 2015:



	MCE		MDS		Total
Balance at June 30, 2015	$	134,378	$	33,768	$	168,146
Goodwill arising from the LIT acquisition	—		5,603		5,603
Balance at December 31, 2015	$	134,378	$	39,371	$	173,749

In the six months ended December 31, 2015, there were no triggering events, as defined by FASB ASC 350, which required an interim goodwill impairment test. The Company performs its annual goodwill impairment test in the fourth quarter of each fiscal year.

The Company determines its reporting units in accordance with FASB ASC 350 by assessing whether discrete financial information is available and if management regularly reviews the operating results of that component. Following this assessment, the Company determined that its reporting units are the same as its operating segments, MCE and MDS.

Restructuring Plan

6 Months Ended

Dec. 31, 2015

Restructuring and Related Activities [Abstract]

Restructuring Plan

Restructuring

The following table presents the detail of activity for the Company’s restructuring plans:



	Severance & Related			Facilities & Other			Total
Restructuring liability at June 30, 2015	$	657		$	1,335		$	1,992
MCE restructuring and other charges	424			207			631
MDS restructuring and other charges	—			—			—
Cash paid	(724		)	(529		)	(1,253		)
Reversals(*)	(72		)	—			(72		)
Restructuring liability at December 31, 2015	$	285		$	1,013		$	1,298

( *) Reversals result from unused outplacement services.

During the three and six months ended December 31, 2015, the Company incurred net restructuring and other charges of $221 and $559, respectively. In the event that the Company is unable to sublease the unoccupied portion of its headquarters complex in Chelmsford, Massachusetts, it will incur nominal, periodic restructuring charges through fiscal 2017 in its MCE reportable segment.

All of the restructuring and other charges are classified as operating expenses in the consolidated statements of operations and comprehensive income and any remaining severance obligations are expected to be paid within the next twelve months. The restructuring liability is classified as accrued expenses in the consolidated balance sheets.

Income Taxes	6 Months Ended
Income Taxes	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company recorded an income tax provision of $1,680 and $1,047 on income from continuing operations before income taxes of $6,473 and $3,933 for the three months ended December 31, 2015 and 2014, respectively. The Company recorded an income tax provision of $2,944 and $1,047 on income from continuing operations before income taxes of $9,697 and $4,650 for the six months ended December 31, 2015 and 2014, respectively. The effective tax rates for the three and six months ended December 31, 2015 differed from the federal statutory rate primarily due to federal research and development credits, domestic manufacturing deduction, stock compensation, and state taxes. The effective tax rates for the three and six months ended December 31, 2014 differed from the federal statutory rate primarily due to the impact of federal research and development credits, domestic manufacturing deduction, stock compensation, and state taxes. On December 18, 2015, the Protecting Americans from Tax Hikes Act of 2015 was enacted, which retroactively reinstated and made permanent the federal research and development tax credit effective January 1, 2015. Based on the indefinite extension, the Company estimates that there was an additional $1,568 credit earned during the period January 1, 2015 through June 30, 2016, of which $568 relating to fiscal year 2015 was recognized as a discrete benefit in the three months ended December 31, 2015. No material changes in the Company’s unrecognized tax positions occurred during the six months ended December 31, 2015. The Company is currently under audit by the Internal Revenue Service for fiscal year 2013. There have been no significant changes to the status of this examination during the six months ended December 31, 2015. It is reasonably possible that within the next 12 months the Company’s unrecognized tax benefits, exclusive of interest, may decrease by up to $757 at the conclusion of the audit. The Company expects that the decrease, if recognized, would not affect the effective tax rate.

Commitments and Contingencies	6 Months Ended
Commitments and Contingencies	Dec. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies LEGAL CLAIMS The Company is subject to litigation, claims, investigations and audits arising from time to time in the ordinary course of our business. Although legal proceedings are inherently unpredictable, the Company believes that it has valid defenses with respect to any matters currently pending against the Company and intends to defend itself vigorously. The outcome of these matters, individually and in the aggregate, is not expected to have a material impact on the Company’s cash flows, results of operations, or financial position. INDEMNIFICATION OBLIGATIONS The Company’s standard product sales and license agreements entered into in the ordinary course of business typically contain an indemnification provision pursuant to which the Company indemnifies, holds harmless, and agrees to reimburse the indemnified party for losses suffered or incurred by the indemnified party in connection with any patent, copyright or other intellectual property infringement claim by any third party with respect to the Company’s products. Such provisions generally survive termination or expiration of the agreements. The potential amount of future payments the Company could be required to make under these indemnification provisions is, in some instances, unlimited. On January 26, 2016, the Company received cash of $175 based on the lapse of the indemnity escrow period associated with the sale of the Company’s former MIS operating segment in January of 2015. The Company provided indemnification to the buyer of the MIS business, generally covering pre-closing tax liabilities of the business and buyer damages resulting from breaches of representations, warranties and covenants contained in the purchase and sale agreement. The Company’s indemnification obligations regarding the MIS operating segment are generally subject to caps. No claims were made against the escrow. PURCHASE COMMITMENTS As of December 31, 2015, the Company has entered into non-cancelable purchase commitments for certain inventory components and services used in its normal operations. The purchase commitments covered by these agreements are for less than one year and aggregate to $24,191. LEASE COMMITMENTS On September 1, 2015, the Company entered into a lease agreement for a new headquarters location in Andover, Massachusetts. The Company expects to occupy the new office space by May 2017. The Company's total obligation for the base rent is $21,070 based on utilization of not less than 114 square feet over the twelve year term of the lease. The Company has an option to expand its footprint to 145 square feet, or the entire facility, which would increase its corresponding total base rent obligation. This option must be exercised by the Company on or before December 31, 2018. OTHER As part of the Company's strategy for growth, the Company continues to explore acquisitions or strategic alliances. The associated acquisition costs incurred in the form of professional fees and services may be material to the future periods in which they occur, regardless of whether the acquisition is ultimately completed. The Company may elect from time to time to purchase and subsequently retire shares of common stock in order to settle an individual employees’ tax liability associated with vesting of a restricted stock award or exercise of stock options. These transactions would be treated as a use of cash in financing activities in the Company's statement of cash flows.

Debt	6 Months Ended
Debt	Dec. 31, 2015
Debt Disclosure [Abstract]
Debt	Debt SENIOR UNSECURED CREDIT FACILITY As of December 31, 2015, there was $162,697 of borrowing capacity available under the Company's credit agreement with a syndicate of commercial banks, with Key Bank National Association acting as the administrative agent. The Company can borrow up to $200,000 based on the Company's consolidated EBITDA for the trailing four quarters and subject to compliance with the financial covenants in the credit agreement. There were no borrowings outstanding on the credit agreement; however, there were outstanding letters of credit of $5,113. The Company was in compliance with all covenants and conditions under the credit agreement.

Stock-Based Compensation

6 Months Ended

Dec. 31, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock-Based Compensation

STOCK OPTION PLANS

The number of shares authorized for issuance under the Company’s 2005 Stock Incentive Plan, as amended and restated (the “2005 Plan”), is 15,252 shares at December 31, 2015. On October 21, 2015, the Company's number of shares authorized for issuance under the 2005 Plan increased 2 shares as a result of cancellations, forfeitures or terminations under the 1997 Plan. The 2005 Plan provides for the grant of non-qualified and incentive stock options, restricted stock, stock appreciation rights and deferred stock awards to employees and non-employees. All stock options are granted with an exercise price of not less than 100% of the fair value of the Company’s common stock at the date of grant and the options generally have a term of seven years. There were 2,786 shares available for future grant under the 2005 Plan at December 31, 2015.

As part of the Company's ongoing annual equity grant program for employees, the Company grants performance-based restricted stock awards to certain executives pursuant to the 2005 Plan. These performance awards vest over a three or four year requisite service period subject to the achievement of specific financial performance targets related to adjusted EBITDA as a percentage of revenue. Based on the performance targets, these awards require graded vesting that results in more rapid expense recognition compared to traditional time-based vesting over the same vesting period. The Company monitors the probability of achieving the performance targets on a quarterly basis and may adjust periodic stock compensation expense accordingly.

EMPLOYEE STOCK PURCHASE PLAN

The number of shares authorized for issuance under the Company’s 1997 Employee Stock Purchase Plan, as amended and restated (“ESPP”), is 1,800 shares. On December 8, 2015, the Company's shareholders approved an increase in the number of shares authorized for issuance under the ESPP to 1,800, an increase of 400. Under the ESPP, rights are granted to purchase shares of common stock at 85% of the lesser of the market value of such shares at either the beginning or the end of each six-month offering period. The ESPP permits employees to purchase common stock through payroll deductions, which may not exceed 10% of an employee’s compensation as defined in the ESPP. There were 46 and 41 shares issued under the ESPP during the six months ended December 31, 2015 and 2014, respectively. Shares available for future purchase under the ESPP totaled 440 at December 31, 2015.

STOCK OPTION AND AWARD ACTIVITY

The following table summarizes activity of the Company’s stock option plans since June 30, 2015:



	Options Outstanding
	Number of Shares		Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (Years)
Outstanding at June 30, 2015	830		$	13.43	1.66
Granted	—		—
Exercised	(175	)	9.82
Cancelled	(24	)	17.25
Outstanding at December 31, 2015	631		$	14.29	1.42

The following table summarizes the status of the Company’s non-vested restricted stock awards since June 30, 2015:



	Non-vested Restricted Stock Awards
	Number of Shares		Weighted Average Grant Date Fair Value
Outstanding at June 30, 2015	1,866		$	10.72
Granted	518		15.90
Vested	(703	)	10.78
Forfeited	(84	)	10.79
Outstanding at December 31, 2015	1,597		$	12.37

STOCK-BASED COMPENSATION EXPENSE

The Company recognized the full expense of its share-based payment plans in the consolidated statements of operations for the three and six months ended December 31, 2015 and 2014 in accordance with FASB ASC 718. During the three and six months ended December 31, 2015, the Company capitalized $153 of stock-based compensation expense on the consolidated balance sheets. In the prior years, the Company did not capitalize any such costs on the consolidated balance sheets, as such costs were not material. Under the fair value recognition provisions of FASB ASC 718, stock-based compensation cost is measured at the grant date based on the value of the award and is recognized as expense over the service period, net of estimated forfeitures. The following table presents share-based compensation expenses from continuing operations included in the Company’s consolidated statements of operations:



	Three Months Ended December 31,						Six Months Ended December 31,
	2015			2014			2015			2014
Cost of revenues	$	6		$	115		$	155		$	266
Selling, general and administrative	2,063			1,778			4,191			3,744
Research and development	323			363			748			797
Share-based compensation expense before tax	2,392			2,256			5,094			4,807
Income tax benefit	(992		)	(839		)	(2,033		)	(1,759		)
Share-based compensation expense, net of income taxes	$	1,400		$	1,417		$	3,061		$	3,048

Operating Segment, Geographic Information and Significant Customers

6 Months Ended

Dec. 31, 2015

Segment Reporting [Abstract]

Operating Segment, Geographic Information and Significant Customers

Operating segments are defined as components of an enterprise evaluated regularly by the Company's chief operating decision maker (“CODM”) in deciding how to allocate resources and assess performance. The Company utilizes the management approach for determining reportable segments in accordance with the authoritative guidance. The following operating segments were determined based upon the nature of the products offered to customers, the market characteristics of each operating segment and the Company's management structure:

•

Mercury Commercial Electronics (“MCE”): this operating segment designs, develops and builds open sensor processing products and subsystems that include embedded processing modules and subsystems, RF and microwave multi-function assemblies as well as subsystems, and RF and microwave components. MCE also provides technology building blocks to Mercury Defense Systems on key classified and unclassified programs.

•

Mercury Defense Systems (“MDS”): this operating segment provides significant capabilities relating to pre-integrated, open, affordable EW, EA and ECM subsystems, significant capabilities in signals intelligence, EO/IR processing technologies, and radar environment test and simulation systems, leveraging commercially available technologies and solutions (or “building blocks”) from the MCE business and other commercial suppliers. Recently, MDS has added advanced security technology and development services related to secure embedded processing applications.

The Company's operating segments were evaluated in accordance with FASB ASC 280 “Segment Reporting” in order to determine which operating segments qualified as reportable segments. The Company determined that both MCE and MDS met the quantitative thresholds for reporting.

The accounting policies of the reportable segments are the same as those described in “Note B: Summary of Significant Accounting Policies.” The profitability measure employed by the Company and its CODM as the basis for allocating resources to segments and assessing segment performance is adjusted EBITDA. The Company believes the adjusted EBITDA financial measure assists in providing an enhanced understanding of its underlying operational measures to manage its business, to evaluate its performance compared to prior periods and the marketplace, and to establish operational goals.

Adjusted EBITDA is defined as income from continuing operations before interest income and expense, income taxes, depreciation, amortization of intangible assets, restructuring and other charges, impairment of long-lived assets, acquisition and financing costs, fair value adjustments from purchase accounting, litigation and settlement expenses, and stock-based compensation expense. Additionally, asset information by reportable segment is not reported because the Company and its CODM utilize consolidated asset information when making business decisions. The following is a summary of the performance of the Company's operations by reportable segment:



	MCE		MDS			Eliminations			Total
THREE MONTHS ENDED DECEMBER 31, 2015
Net revenues to unaffiliated customers	$	53,015	$	7,947		$	(545	)	$	60,417
Intersegment revenues	1,344		77			(1,421		)	—
Net revenues	$	54,359	$	8,024		$	(1,966	)	$	60,417
Adjusted EBITDA	$	12,873	$	(418	)	$	124		$	12,579
THREE MONTHS ENDED DECEMBER 31, 2014
Net revenues to unaffiliated customers	$	51,806	$	4,767		$	516		$	57,089
Intersegment revenues	923		72			(995		)	—
Net revenues	$	52,729	$	4,839		$	(479	)	$	57,089
Adjusted EBITDA	$	10,510	$	284		$	(87	)	$	10,707
SIX MONTHS ENDED DECEMBER 31, 2015
Net revenues to unaffiliated customers	$	103,021	$	15,964		$	(159	)	$	118,826
Intersegment revenues	4,360		105			(4,465		)	—
Net revenues	$	107,381	$	16,069		$	(4,624	)	$	118,826
Adjusted EBITDA	$	24,329	$	64		$	27		$	24,420
SIX MONTHS ENDED DECEMBER 31, 2014
Net revenues to unaffiliated customers	$	100,362	$	10,147		$	641		$	111,150
Intersegment revenues	1,425		211			(1,636		)	—
Net revenues	$	101,787	$	10,358		$	(995	)	$	111,150
Adjusted EBITDA	$	17,799	$	770		$	141		$	18,710

The following table reconciles the Company’s income from continuing operations, the most directly comparable GAAP financial measure, to its adjusted EBITDA:



	Three Months Ended December 31,					Six Months Ended December 31,
	2015			2014		2015			2014
Income from continuing operations	$	4,793		$	2,886	$	6,753		$	3,603
Interest (income) expense, net	(21		)	4		(43		)	9
Income taxes	1,680			1,047		2,944			1,047
Depreciation	1,620			1,590		3,208			3,290
Amortization of intangible assets	1,638			1,762		3,351			3,524
Restructuring and other charges	221			1,162		559			2,430
Impairment of long-lived assets	231			—		231			—
Acquisition and financing costs	25			—		2,323			—
Fair value adjustments from purchase accounting	—			—		—			—
Litigation and settlement expenses	—			—		—			—
Stock-based compensation expense	2,392			2,256		5,094			4,807
Adjusted EBITDA	$	12,579		$	10,707	$	24,420		$	18,710

The geographic distribution of the Company’s revenues is summarized as follows:



	US		Europe		Asia Pacific		Eliminations			Total
THREE MONTHS ENDED DECEMBER 31, 2015
Net revenues to unaffiliated customers	$	58,211	$	653	$	1,553	$	—		$	60,417
Inter-geographic revenues	1,949		371		—		(2,320		)	—
Net revenues	$	60,160	$	1,024	$	1,553	$	(2,320	)	$	60,417
THREE MONTHS ENDED DECEMBER 31, 2014
Net revenues to unaffiliated customers	$	55,625	$	355	$	1,109	$	—		$	57,089
Inter-geographic revenues	964		179		—		(1,143		)	—
Net revenues	$	56,589	$	534	$	1,109	$	(1,143	)	$	57,089
SIX MONTHS ENDED DECEMBER 31, 2015
Net revenues to unaffiliated customers	$	115,573	$	1,111	$	2,142	$	—		$	118,826
Inter-geographic revenues	3,203		402		—		(3,605		)	—
Net revenues	$	118,776	$	1,513	$	2,142	$	(3,605	)	$	118,826
SIX MONTHS ENDED DECEMBER 31, 2014
Net revenues to unaffiliated customers	$	108,710	$	701	$	1,739	$	—		$	111,150
Inter-geographic revenues	1,547		179		—		(1,726		)	—
Net revenues	$	110,257	$	880	$	1,739	$	(1,726	)	$	111,150

Foreign revenue is based on the country in which the Company’s legal subsidiary is domiciled.

The geographic distribution of the Company’s long-lived assets is summarized as follows:



	US		Europe		Asia Pacific		Eliminations		Total
December 31, 2015	$	13,215	$	83	$	26	$	—	$	13,324
June 30, 2015	$	13,127	$	68	$	31	$	—	$	13,226

Identifiable long-lived assets exclude goodwill and intangible assets.

Customers comprising 10% or more of the Company’s revenues for the periods shown below are as follows:



	Three Months Ended December 31,				Six Months Ended December 31,
	2015		2014		2015		2014
Raytheon Company	29	%	36	%	33	%	35	%
Lockheed Martin Corporation	26	%	18	%	21	%	24	%
	55	%	54	%	54	%	59	%

While the Company typically has customers from which it derives 10% or more of its revenue, the sales to each of these customers are spread across multiple programs and platforms. Programs comprising 10% or more of the Company’s revenues for the periods shown below are as follows:



	Three Months Ended December 31,				Six Months Ended December 31,
	2015		2014		2015		2014
SEWIP	16	%	*		12	%	13	%
F-35	13	%	11	%	*		11	%
Patriot	11	%	18	%	14	%	18	%
Aegis	*		10	%	*		10	%
	40	%	39	%	26	%	52	%


*	Indicates that the amount is less than 10% of the Company’s revenues for the respective period.

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8981-108599

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9038-108599

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
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+ Details

Subsequent Events	6 Months Ended
Subsequent Events	Dec. 31, 2015
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events The Company has evaluated subsequent events from the date of the consolidated balance sheet through the date the consolidated financial statements were issued.

Summary of Significant Accounting Policies (Policies)

6 Months Ended

Dec. 31, 2015

Accounting Policies [Abstract]

Basis of Presentation

BASIS OF PRESENTATION

The Company is comprised of the following operating segments: MCE and MDS. See Note L of the Notes to consolidated financial statements for further discussion.

The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All intercompany transactions and balances have been eliminated in consolidation

Business Combinations

BUSINESS COMBINATIONS

Use of Estimates

USE OF ESTIMATES

Revenue Recognition

REVENUE RECOGNITION

Weighted-Average Shares

WEIGHTED-AVERAGE SHARES

Weighted-average shares were calculated as follows:



	Three Months Ended December 31,		Six Months Ended December 31,
	2015	2014	2015	2014
Basic weighted-average shares outstanding	33,120	32,052	33,047	31,880
Effect of dilutive equity instruments	711	634	772	840
Diluted weighted-average shares outstanding	33,831	32,686	33,819	32,720

- Definition

Disclosure of accounting policy for revenue recognition. If the entity has different policies for different types of revenue transactions, the policy for each material type of transaction is generally disclosed. If a sales transaction has multiple element arrangements (for example, delivery of multiple products, services or the rights to use assets) the disclosure may indicate the accounting policy for each unit of accounting as well as how units of accounting are determined and valued. The disclosure may encompass important judgment as to appropriateness of principles related to recognition of revenue. The disclosure also may indicate the entity's treatment of any unearned or deferred revenue that arises from the transaction.

+ References + Details

Summary of Significant Accounting Policies (Tables)

6 Months Ended

Dec. 31, 2015

Accounting Policies [Abstract]

Basic and Diluted Weighted Average Shares Outstanding

WEIGHTED-AVERAGE SHARES

Weighted-average shares were calculated as follows:



	Three Months Ended December 31,		Six Months Ended December 31,
	2015	2014	2015	2014
Basic weighted-average shares outstanding	33,120	32,052	33,047	31,880
Effect of dilutive equity instruments	711	634	772	840
Diluted weighted-average shares outstanding	33,831	32,686	33,819	32,720

Acquisitions (Tables)

6 Months Ended

Dec. 31, 2015

Business Combinations [Abstract]

Schedule of the Net Purchase Price and Fair Values of Assets and Liabilities Acquired

The following table presents the net purchase price and the preliminary fair values of the assets and liabilities of LIT:



	Amounts
Consideration transferred
Cash paid at closing	$	10,290
Working capital adjustment	(236		)
Less cash and cash equivalents acquired	(290		)
Net purchase price	$	9,764

Estimated fair value of tangible assets acquired and liabilities assumed
Cash and cash equivalents	$	290
Accounts receivable and cost in excess of billings	290
Other current and non-current assets	175
Current liabilities	(264		)
Estimated fair value of net tangible assets acquired	491
Estimated fair value of identifiable intangible assets	3,960
Estimated fair value of goodwill	5,603
Estimated fair value of assets acquired	10,054
Less cash and cash equivalents acquired	(290		)
Net purchase price	$	9,764

Discontinued Operations (Tables)

6 Months Ended

Dec. 31, 2015

Discontinued Operations and Disposal Groups [Abstract]

Schedule of discontinued operations

The amounts reported in loss from discontinued operations, net of income taxes were as follows:



	Three Months Ended December 31,			Six Months Ended December 31,
	2014			2014
Net revenues of discontinued operations	$	1,321		$	3,160
Costs of discontinued operations:
Cost of revenues	951			2,176
Selling, general and administrative	600			1,247
Research and development	105			276
Amortization of intangible assets	124			248
Acquisition costs and other related expenses	76			109
Impairment of goodwill	2,283			2,283
Loss from discontinued operations before income taxes	(2,818		)	(3,179		)
Tax benefit	(197		)	(340		)
Loss from discontinued operations, net of income taxes	$	(2,621	)	$	(2,839	)

There were no balances for the assets and liabilities of the discontinued operations for the periods ending December 31, 2015 and June 30, 2015.

The depreciation, amortization, and significant operating and investing non-cash items of the discontinued operations were as follows:



	Three Months Ended December 31,		Six Months Ended December 31,
	2014		2014
Depreciation	$	45	$	89
Amortization of intangible assets	$	124	$	248
Impairment of goodwill	$	2,283	$	2,283
Stock-based compensation expense	$	62	$	126

- Definition

Tabular disclosure of disposal groups, which may include the gain (loss) recognized in the income statement and the income statement caption that includes that gain (loss), amounts of revenues and pretax profit or loss reported in discontinued operations, the classification and carrying value of the assets and liabilities comprising the disposal group, and the segment in which the disposal group was reported. Also may include the amount of adjustments to amounts previously reported in discontinued operations such as resolution of contingencies arising from the disposal transaction or the operations of the component prior to disposal.

+ References + Details

Fair Value of Financial Instruments (Tables)

6 Months Ended

Dec. 31, 2015

Fair Value Disclosures [Abstract]

Summary of Financial Assets Measured at Fair Value

The following table summarizes the Company’s financial assets measured at fair value on a recurring basis at December 31, 2015:



	Fair Value Measurements
	December 31, 2015		Level 1		Level 2		Level 3
Assets:
Cash and cash equivalents	$	51,529	$	51,529	$	—	$	—
Certificates of deposit	30,025		—		30,025		—
Restricted cash	264		264		—		—
Cost-method investment	500		—		—		500
Total	$	82,318	$	51,793	$	30,025	$	500

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

The change of the fair value of the Company's cost-method investment is as follows:



	Fair Value
Balance at June 30, 2015	$	500
Changes in fair value	—
Balance at December 31, 2015	$	500

Inventory (Tables)

6 Months Ended

Dec. 31, 2015

Inventory Disclosure [Abstract]

Inventory

Inventory was comprised of the following:



	December 31, 2015		June 30, 2015
Raw materials	$	15,994	$	15,864
Work in process	13,916		11,190
Finished goods	6,797		4,906
Total	$	36,707	$	31,960

Goodwill (Tables)

6 Months Ended

Dec. 31, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in Carrying Amount of Goodwill

The following table sets forth the changes in the carrying amount of goodwill by reporting unit for the six months ended December 31, 2015:



	MCE		MDS		Total
Balance at June 30, 2015	$	134,378	$	33,768	$	168,146
Goodwill arising from the LIT acquisition	—		5,603		5,603
Balance at December 31, 2015	$	134,378	$	39,371	$	173,749

Restructuring Plan (Tables)

6 Months Ended

Dec. 31, 2015

Restructuring and Related Activities [Abstract]

Expenses by Reportable Segment for Restructuring Plans

The following table presents the detail of activity for the Company’s restructuring plans:



	Severance & Related			Facilities & Other			Total
Restructuring liability at June 30, 2015	$	657		$	1,335		$	1,992
MCE restructuring and other charges	424			207			631
MDS restructuring and other charges	—			—			—
Cash paid	(724		)	(529		)	(1,253		)
Reversals(*)	(72		)	—			(72		)
Restructuring liability at December 31, 2015	$	285		$	1,013		$	1,298

( *) Reversals result from unused outplacement services.

Stock-Based Compensation (Tables)

6 Months Ended

Dec. 31, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Summary of Stock Option Plans

The following table summarizes activity of the Company’s stock option plans since June 30, 2015:



	Options Outstanding
	Number of Shares		Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (Years)
Outstanding at June 30, 2015	830		$	13.43	1.66
Granted	—		—
Exercised	(175	)	9.82
Cancelled	(24	)	17.25
Outstanding at December 31, 2015	631		$	14.29	1.42

Summary of Nonvested Restricted Stock

The following table summarizes the status of the Company’s non-vested restricted stock awards since June 30, 2015:



	Non-vested Restricted Stock Awards
	Number of Shares		Weighted Average Grant Date Fair Value
Outstanding at June 30, 2015	1,866		$	10.72
Granted	518		15.90
Vested	(703	)	10.78
Forfeited	(84	)	10.79
Outstanding at December 31, 2015	1,597		$	12.37

Stock Based Compensation Expenses

The following table presents share-based compensation expenses from continuing operations included in the Company’s consolidated statements of operations:



	Three Months Ended December 31,						Six Months Ended December 31,
	2015			2014			2015			2014
Cost of revenues	$	6		$	115		$	155		$	266
Selling, general and administrative	2,063			1,778			4,191			3,744
Research and development	323			363			748			797
Share-based compensation expense before tax	2,392			2,256			5,094			4,807
Income tax benefit	(992		)	(839		)	(2,033		)	(1,759		)
Share-based compensation expense, net of income taxes	$	1,400		$	1,417		$	3,061		$	3,048

Operating Segment, Geographic Information and Significant Customers (Tables)

6 Months Ended

Dec. 31, 2015

Segment Reporting [Abstract]

Summary of Performance of Operations by Reportable Segment

The following is a summary of the performance of the Company's operations by reportable segment:



	MCE		MDS			Eliminations			Total
THREE MONTHS ENDED DECEMBER 31, 2015
Net revenues to unaffiliated customers	$	53,015	$	7,947		$	(545	)	$	60,417
Intersegment revenues	1,344		77			(1,421		)	—
Net revenues	$	54,359	$	8,024		$	(1,966	)	$	60,417
Adjusted EBITDA	$	12,873	$	(418	)	$	124		$	12,579
THREE MONTHS ENDED DECEMBER 31, 2014
Net revenues to unaffiliated customers	$	51,806	$	4,767		$	516		$	57,089
Intersegment revenues	923		72			(995		)	—
Net revenues	$	52,729	$	4,839		$	(479	)	$	57,089
Adjusted EBITDA	$	10,510	$	284		$	(87	)	$	10,707
SIX MONTHS ENDED DECEMBER 31, 2015
Net revenues to unaffiliated customers	$	103,021	$	15,964		$	(159	)	$	118,826
Intersegment revenues	4,360		105			(4,465		)	—
Net revenues	$	107,381	$	16,069		$	(4,624	)	$	118,826
Adjusted EBITDA	$	24,329	$	64		$	27		$	24,420
SIX MONTHS ENDED DECEMBER 31, 2014
Net revenues to unaffiliated customers	$	100,362	$	10,147		$	641		$	111,150
Intersegment revenues	1,425		211			(1,636		)	—
Net revenues	$	101,787	$	10,358		$	(995	)	$	111,150
Adjusted EBITDA	$	17,799	$	770		$	141		$	18,710

Reconciliation of Net Income (loss), Most Directly Comparable GAAP Financial Measure to Adjusted EBITDA

The following table reconciles the Company’s income from continuing operations, the most directly comparable GAAP financial measure, to its adjusted EBITDA:



	Three Months Ended December 31,					Six Months Ended December 31,
	2015			2014		2015			2014
Income from continuing operations	$	4,793		$	2,886	$	6,753		$	3,603
Interest (income) expense, net	(21		)	4		(43		)	9
Income taxes	1,680			1,047		2,944			1,047
Depreciation	1,620			1,590		3,208			3,290
Amortization of intangible assets	1,638			1,762		3,351			3,524
Restructuring and other charges	221			1,162		559			2,430
Impairment of long-lived assets	231			—		231			—
Acquisition and financing costs	25			—		2,323			—
Fair value adjustments from purchase accounting	—			—		—			—
Litigation and settlement expenses	—			—		—			—
Stock-based compensation expense	2,392			2,256		5,094			4,807
Adjusted EBITDA	$	12,579		$	10,707	$	24,420		$	18,710

Geographic Distribution of Revenues and Long Lived Assets from Continuing Operations

The geographic distribution of the Company’s revenues is summarized as follows:



	US		Europe		Asia Pacific		Eliminations			Total
THREE MONTHS ENDED DECEMBER 31, 2015
Net revenues to unaffiliated customers	$	58,211	$	653	$	1,553	$	—		$	60,417
Inter-geographic revenues	1,949		371		—		(2,320		)	—
Net revenues	$	60,160	$	1,024	$	1,553	$	(2,320	)	$	60,417
THREE MONTHS ENDED DECEMBER 31, 2014
Net revenues to unaffiliated customers	$	55,625	$	355	$	1,109	$	—		$	57,089
Inter-geographic revenues	964		179		—		(1,143		)	—
Net revenues	$	56,589	$	534	$	1,109	$	(1,143	)	$	57,089
SIX MONTHS ENDED DECEMBER 31, 2015
Net revenues to unaffiliated customers	$	115,573	$	1,111	$	2,142	$	—		$	118,826
Inter-geographic revenues	3,203		402		—		(3,605		)	—
Net revenues	$	118,776	$	1,513	$	2,142	$	(3,605	)	$	118,826
SIX MONTHS ENDED DECEMBER 31, 2014
Net revenues to unaffiliated customers	$	108,710	$	701	$	1,739	$	—		$	111,150
Inter-geographic revenues	1,547		179		—		(1,726		)	—
Net revenues	$	110,257	$	880	$	1,739	$	(1,726	)	$	111,150

Foreign revenue is based on the country in which the Company’s legal subsidiary is domiciled.

The geographic distribution of the Company’s long-lived assets is summarized as follows:



	US		Europe		Asia Pacific		Eliminations		Total
December 31, 2015	$	13,215	$	83	$	26	$	—	$	13,324
June 30, 2015	$	13,127	$	68	$	31	$	—	$	13,226

Customers Comprising Ten Percent or More Revenues

Customers comprising 10% or more of the Company’s revenues for the periods shown below are as follows:



	Three Months Ended December 31,				Six Months Ended December 31,
	2015		2014		2015		2014
Raytheon Company	29	%	36	%	33	%	35	%
Lockheed Martin Corporation	26	%	18	%	21	%	24	%
	55	%	54	%	54	%	59	%

Schedules of Concentration of Risk, by Risk Factor [Table Text Block]

Programs comprising 10% or more of the Company’s revenues for the periods shown below are as follows:



	Three Months Ended December 31,				Six Months Ended December 31,
	2015		2014		2015		2014
SEWIP	16	%	*		12	%	13	%
F-35	13	%	11	%	*		11	%
Patriot	11	%	18	%	14	%	18	%
Aegis	*		10	%	*		10	%
	40	%	39	%	26	%	52	%


*	Indicates that the amount is less than 10% of the Company’s revenues for the respective period.

Description of Business (Details)	6 Months Ended
Description of Business (Details)	Dec. 31, 2015 program contractor
Accounting Policies [Abstract]
Number of programs using products and services \| program	300
Number of contractors using products and services \| contractor	25

Summary of Significant Accounting Policies - Additional Information (Detail) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Significant Accounting Policies [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	2	654	25	740
Multiple Delivery Revenue [Member]
Significant Accounting Policies [Line Items]
Percentage Of Revenue Recognized	36.00%	26.00%	42.00%	28.00%

Basic and Diluted Weighted Average Shares Outstanding (Detail) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	2	654	25	740
Basic weighted-average shares outstanding	33,120	32,052	33,047	31,880
Effect of dilutive equity instruments	711	634	772	840
Diluted weighted-average shares outstanding	33,831	32,686	33,819	32,720

Acquisitions - Narrative (Details) - USD ($) $ in Thousands		3 Months Ended	6 Months Ended
Acquisitions - Narrative (Details) - USD ($) $ in Thousands	Dec. 16, 2015	Dec. 31, 2015	Dec. 31, 2015	Dec. 31, 2014	Jun. 30, 2015
Business Acquisition [Line Items]
Cash paid at closing			$ 9,764	$ 0
Estimated fair value of goodwill		$ 173,749	173,749		$ 168,146
Lewis Innovative Technologies, Inc. (LIT) [Member]
Business Acquisition [Line Items]
Cash paid at closing	$ 9,764
Escrow deposit	1,000
Estimated fair value of identifiable intangible assets	3,960
Estimated fair value of goodwill	5,603
Revenue of acquiree since acquisition date		30	30
Net loss of acquiree since acquisition date		$ (40)	$ (40)
Impairment expense related to pre-existing relationship	231
Developed Technology Rights [Member] \| Lewis Innovative Technologies, Inc. (LIT) [Member]
Business Acquisition [Line Items]
Estimated fair value of identifiable intangible assets	3,240
Customer Relationships [Member] \| Lewis Innovative Technologies, Inc. (LIT) [Member]
Business Acquisition [Line Items]
Estimated fair value of identifiable intangible assets	590
Backlog [Member] \| Lewis Innovative Technologies, Inc. (LIT) [Member]
Business Acquisition [Line Items]
Estimated fair value of identifiable intangible assets	$ 130

Acquisitions - Net Purchase Price and Fair Values of Assets and Liabilities Acquired (Details) - USD ($) $ in Thousands		6 Months Ended
	Dec. 16, 2015	Dec. 31, 2015	Dec. 31, 2014	Jun. 30, 2015
Consideration transferred
Net purchase price		$ 9,764	$ 0
Estimated fair value of tangible assets acquired and liabilities assumed
Estimated fair value of goodwill		$ 173,749		$ 168,146
Lewis Innovative Technologies, Inc. (LIT) [Member]
Consideration transferred
Cash paid at closing	$ 10,290
Working capital adjustment	(236)
Less cash and cash equivalents acquired	(290)
Net purchase price	9,764
Estimated fair value of tangible assets acquired and liabilities assumed
Cash and cash equivalents	290
Accounts receivable and cost in excess of billings	290
Other current and non-current assets	175
Current liabilities	(264)
Estimated fair value of net tangible assets acquired	491
Estimated fair value of identifiable intangible assets	3,960
Estimated fair value of goodwill	5,603
Estimated fair value of assets acquired	$ 10,054

Discontinued Operations - (Loss) Income from Discontinued Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Costs of discontinued operations:
Impairment of goodwill		$ 2,283		$ 2,283
(Loss) income from discontinued operations	$ 0	(2,621)	$ 0	(2,839)
MIS [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net revenues of discontinued operations		1,321		3,160
Costs of discontinued operations:
Cost of revenues		951		2,176
Selling, general and administrative		600		1,247
Research and development		105		276
Amortization of intangible assets		124		248
Disposal Group, Including Discontinued Operation, Acquisition Costs and Other Related Charges		76		109
(Loss) income from discontinued operations before income taxes		(2,818)		(3,179)
Tax (benefit) provision		(197)		(340)
(Loss) income from discontinued operations		$ (2,621)		$ (2,839)

Discontinued Operations - Depreciation, Amortization, Capital Expenditures, and Significant Noncash Items (Details) - MIS [Member] - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Dec. 31, 2014	Dec. 31, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Depreciation	$ 45	$ 89
Amortization of intangible assets	124	248
Impairment of goodwill	2,283	2,283
Stock-based compensation expense	$ 62	$ 126

Fair Value of Financial Instruments - Summary of Financial Assets Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	6 Months Ended
	Dec. 31, 2015	Jun. 30, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	$ 500	$ 500
Assets:
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases	0
Fair Value, Measurements, Recurring [Member] \| Level 1
Assets:
Fair value measurement disclosure	51,793
Fair Value, Measurements, Recurring [Member] \| Level 2
Assets:
Fair value measurement disclosure	30,025
Fair Value, Measurements, Recurring [Member] \| Level 3
Assets:
Fair value measurement disclosure	500
Cash and cash equivalents \| Fair Value, Measurements, Recurring [Member] \| Level 1
Assets:
Fair value measurement disclosure	51,529
Cash and cash equivalents \| Fair Value, Measurements, Recurring [Member] \| Level 2
Assets:
Fair value measurement disclosure	0
Cash and cash equivalents \| Fair Value, Measurements, Recurring [Member] \| Level 3
Assets:
Fair value measurement disclosure	0
Certificates of Deposit [Member] \| Fair Value, Measurements, Recurring [Member] \| Level 1
Assets:
Fair value measurement disclosure	0
Certificates of Deposit [Member] \| Fair Value, Measurements, Recurring [Member] \| Level 2
Assets:
Fair value measurement disclosure	30,025
Certificates of Deposit [Member] \| Fair Value, Measurements, Recurring [Member] \| Level 3
Assets:
Fair value measurement disclosure	0
Restricted cash \| Fair Value, Measurements, Recurring [Member] \| Level 1
Assets:
Fair value measurement disclosure	264
Restricted cash \| Fair Value, Measurements, Recurring [Member] \| Level 2
Assets:
Fair value measurement disclosure	0
Restricted cash \| Fair Value, Measurements, Recurring [Member] \| Level 3
Assets:
Fair value measurement disclosure	0
Cost-method Investments [Member] \| Fair Value, Measurements, Recurring [Member] \| Level 1
Assets:
Fair value measurement disclosure	0
Cost-method Investments [Member] \| Fair Value, Measurements, Recurring [Member] \| Level 2
Assets:
Fair value measurement disclosure	0
Cost-method Investments [Member] \| Fair Value, Measurements, Recurring [Member] \| Level 3
Assets:
Fair value measurement disclosure	500
Fair Value \| Fair Value, Measurements, Recurring [Member]
Assets:
Fair value measurement disclosure	82,318
Fair Value \| Cash and cash equivalents \| Fair Value, Measurements, Recurring [Member]
Assets:
Fair value measurement disclosure	51,529
Fair Value \| Certificates of Deposit [Member] \| Fair Value, Measurements, Recurring [Member]
Assets:
Fair value measurement disclosure	30,025
Fair Value \| Restricted cash \| Fair Value, Measurements, Recurring [Member]
Assets:
Fair value measurement disclosure	264
Fair Value \| Cost-method Investments [Member] \| Fair Value, Measurements, Recurring [Member]
Assets:
Fair value measurement disclosure	$ 500

Inventory (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Jun. 30, 2015
Inventory Disclosure [Abstract]
Raw materials	$ 15,994	$ 15,864
Work in process	13,916	11,190
Finished goods	6,797	4,906
Total	$ 36,707	$ 31,960

Inventory - Additional Information (Detail) - USD ($)	6 Months Ended
Inventory - Additional Information (Detail) - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Schedule of Inventory [Line Items]
Increase in Inventory	$ 4,677,000	$ (1,584,000)
Production Cycle Term	Longer than one year
Product
Schedule of Inventory [Line Items]
Inventory relating to contracts having production cycles longer than one year	$ 0

Changes in Carrying Amount of Goodwill (Detail) $ in Thousands	6 Months Ended
	Dec. 31, 2015 USD ($)
Goodwill [Roll Forward]
Beginning Balance	$ 168,146
Goodwill, Other Changes	5,603
Ending Balance	173,749
MCE
Goodwill [Roll Forward]
Beginning Balance	134,378
Goodwill, Other Changes	0
Ending Balance	134,378
MDS
Goodwill [Roll Forward]
Beginning Balance	33,768
Goodwill, Other Changes	5,603
Ending Balance	$ 39,371

Restructuring Plan - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Jun. 30, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Current	$ 1,298		$ 1,298		$ 1,992
Restructuring expenses	$ 221	$ 1,162	$ 559	$ 2,430

Expenses by Reportable Segment for Restructuring Plans (Detail)
$ in Thousands

6 Months Ended

Dec. 31, 2015

USD ($)

Restructuring Reserve [Roll Forward]

Restructuring liability at beginning of period

$ 1,992

Cash paid

(1,253)

Reversals

(72)

^[1]

Restructuring liability at end of period

1,298

Severance & Related [Member]

Restructuring Reserve [Roll Forward]

Restructuring liability at beginning of period

657

Cash paid

(724)

Reversals

(72)

^[1]

Restructuring liability at end of period

285

Facility & Other [Member]

Restructuring Reserve [Roll Forward]

Restructuring liability at beginning of period

1,335

Cash paid

(529)

Reversals

Restructuring liability at end of period

1,013

MCE

Restructuring Reserve [Roll Forward]

Restructuring, Settlement and Impairment Provisions

631

MCE | Severance & Related [Member]

Restructuring Reserve [Roll Forward]

Restructuring, Settlement and Impairment Provisions

424

MCE | Facility & Other [Member]

Restructuring Reserve [Roll Forward]

Restructuring, Settlement and Impairment Provisions

207

MDS

Restructuring Reserve [Roll Forward]

Restructuring, Settlement and Impairment Provisions

MDS | Severance & Related [Member]

Restructuring Reserve [Roll Forward]

Restructuring, Settlement and Impairment Provisions

MDS | Facility & Other [Member]

Restructuring Reserve [Roll Forward]

Restructuring, Settlement and Impairment Provisions

$ 0

[1]	Reversals result from unused outplacement services.

Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended	18 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Jun. 30, 2015	Jun. 30, 2016
Tax Credit Carryforward [Line Items]
Income tax (benefit) expense	$ 1,680	$ 1,047	$ 2,944	$ 1,047
(Loss) income from operations before income taxes	6,473	$ 3,933	9,697	$ 4,650
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit	$ 757		$ 757
Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount					$ 568
Scenario, Forecast [Member]
Tax Credit Carryforward [Line Items]
Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount						$ 1,568

Commitments And Contingencies - Additional Information (Detail) ft² in Thousands, $ in Thousands	Jan. 26, 2016 USD ($)	Dec. 31, 2015 USD ($)	Sep. 01, 2015 ft²
Non-cancelable purchase commitments
Long-term Purchase Commitment [Line Items]
Purchase commitments for less than one year		$ 24,191
Andover, Massachusetts Lease [Member]
Long-term Purchase Commitment [Line Items]
Operating Leases, Future Minimum Payments Due		$ 21,070
Area of Leased Property (in sq feet) \| ft²			114
Andover, Massachusetts Lease [Member] \| Pro Forma [Member]
Long-term Purchase Commitment [Line Items]
Area of Leased Property (in sq feet) \| ft²			145
Subsequent Event [Member] \| Indemnification Agreement [Member]
Long-term Purchase Commitment [Line Items]
Proceeds from Other Deposits	$ 175

Debt - Additional Information (Detail) - Senior Unsecured Credit Facilities - USD ($)	Dec. 31, 2015	Oct. 12, 2012
Debt Instrument [Line Items]
Remaining borrowing capacity	$ 162,697,000
Borrowings outstanding	0
Amount of outstanding letter of credit	$ 5,113,000
Key Bank Credit Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity		$ 200,000,000

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References + Details

Stock Based Compensation - Additional Information (Detail) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended	6 Months Ended
	Dec. 31, 2015	Dec. 31, 2015	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Capitalized Amount	$ 153	$ 153
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures		46	41
Employee Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized for issuance under stock incentive plan	1,800	1,800
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized		400
Shares available for future grant	440	440
Purchase price as a percentage of the lesser of the market value of such shares at either the beginning or the end of each nine-month offering period		85.00%
Percentage of employee compensation that may be uses to purchase common stock through payroll deductions, maximum		10.00%
2005 Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized for issuance under stock incentive plan	15,252	15,252
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized		2
Exercise price of stock option, percentage	100.00%	100.00%
Shares available for future grant	2,786	2,786
2005 Stock Incentive Plan \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Term of stock option		7 years
Executive Officer [Member] \| 2005 Stock Incentive Plan \| Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		3 years
Vice President [Member] \| 2005 Stock Incentive Plan \| Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		4 years

Summary of Stock Option Plans (Detail) - $ / shares shares in Thousands	6 Months Ended		12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Jun. 30, 2015
Number of Shares
Granted	46	41
Employee Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized	400
Stock Options
Number of Shares
Outstanding at beginning of period	830
Granted	0
Exercised	(175)
Cancelled	(24)
Outstanding at end of period	631		830
Weighted Average Exercise Price
Outstanding at beginning of period	$ 13.43
Granted	0.00
Exercised	9.82
Cancelled	17.25
Outstanding at end of period	$ 14.29		$ 13.43
Weighted Average Remaining Contractual Term (Years)
Outstanding at end of period	1 year 5 months 2 days		1 year 7 months 28 days
2005 Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized	2

Summary of Nonvested Restricted Stock (Detail) - Restricted Stock shares in Thousands	6 Months Ended
	Dec. 31, 2015 $ / shares shares
Number of Shares
Beginning Balance \| shares	1,866
Granted \| shares	518
Vested \| shares	(703)
Forfeited \| shares	(84)
Ending Balance \| shares	1,597
Weighted Average Grant Date Fair Value
Beginning Balance \| $ / shares	$ 10.72
Granted \| $ / shares	15.90
Vested \| $ / shares	10.78
Forfeited \| $ / shares	10.79
Ending Balance \| $ / shares	$ 12.37

Stock Based Compensation Expenses (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense before tax	$ 2,392	$ 2,256	$ 5,094	$ 4,807
Income taxes	(992)	(839)	(2,033)	(1,759)
Net compensation expense	1,400	1,417	3,061	3,048
Cost of revenues
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense before tax	6	115	155	266
Selling, general and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense before tax	2,063	1,778	4,191	3,744
Research and development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense before tax	$ 323	$ 363	$ 748	$ 797

Operating Segment, Geographic Information and Significant Customers - Summary of Performance of Operations by Reportable Segment (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	$ (60,417)	$ (57,089)	$ (118,826)	$ (111,150)
Adjusted EBITDA	12,579	10,707	24,420	18,710
MCE
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	(53,015)	(51,806)	(103,021)	(100,362)
MDS
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	(7,947)	(4,767)	(15,964)	(10,147)
Segment Reconciling Items [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	545	(516)	159	(641)
Intersegment Eliminations [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	1,421	995	4,465	1,636
Intersegment Eliminations [Member] \| MCE
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	1,344	923	4,360	1,425
Intersegment Eliminations [Member] \| MDS
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	77	72	105	211
Operating Segments [Member] \| MCE
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	(54,359)	(52,729)	(107,381)	(101,787)
Adjusted EBITDA	12,873	10,510	24,329	17,799
Operating Segments [Member] \| MDS
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	(8,024)	(4,839)	(16,069)	(10,358)
Adjusted EBITDA	(418)	284	64	770
Segment Reconciling Items and Intersegment Eliminations [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	1,966	479	4,624	995
Adjusted EBITDA	$ 124	$ (87)	$ 27	$ 141

Operating Segment, Geographic Information and Significant Customers - Reconciles Net Income (loss), Most Directly Comparable GAAP Financial Measure to Adjusted EBITDA (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting [Abstract]
Income from continuing operations	$ 4,793	$ 2,886	$ 6,753	$ 3,603
Interest expense, net	(21)	4	(43)	9
Tax provision	1,680	1,047	2,944	1,047
Depreciation	1,620	1,590	3,208	3,290
Amortization of intangible assets	1,638	1,762	3,351	3,524
Restructuring and other charges	221	1,162	559	2,430
Impairment of Intangible Assets, Finite-lived	231	0	231	0
Stock-based compensation expense	2,392	2,256	5,094	4,807
Adjusted EBITDA	12,579	10,707	24,420	18,710
Acquisition and Financing Costs	25	0	2,323	0
Fair Value Adjustments From Purchase Accounting	$ 0	$ 0	$ 0	$ 0

Operating Segment, Geographic Information and Significant Customers - Geographic Distribution of Revenues and Long Lived Assets from Continuing Operations (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Jun. 30, 2015
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	$ (60,417)	$ (57,089)	$ (118,826)	$ (111,150)
Identifiable long-lived assets	13,324		13,324		$ 13,226
US
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	(58,211)	(55,625)	(115,573)	(108,710)
Europe
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	(653)	(355)	(1,111)	(701)
Asia Pacific
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	(1,553)	(1,109)	(2,142)	(1,739)
Reportable Geographical Components [Member] \| US
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	(60,160)	(56,589)	(118,776)	(110,257)
Identifiable long-lived assets	13,215		13,215		13,127
Reportable Geographical Components [Member] \| Europe
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	(1,024)	(534)	(1,513)	(880)
Identifiable long-lived assets	83		83		68
Reportable Geographical Components [Member] \| Asia Pacific
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	(1,553)	(1,109)	(2,142)	(1,739)
Identifiable long-lived assets	26		26		31
Geography Eliminations [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	2,320	1,143	3,605	1,726
Identifiable long-lived assets	0		0		$ 0
Geography Eliminations [Member] \| US
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	1,949	964	3,203	1,547
Geography Eliminations [Member] \| Europe
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	371	179	402	179
Geography Eliminations [Member] \| Asia Pacific
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	$ 0	$ 0	$ 0	$ 0

Operating Segment, Geographic Information and Significant Customers - Customers Comprising Ten Percent or more Revenues (Detail) - Sales Revenue, Net [Member]	3 Months Ended		6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Revenue, Major Customer [Line Items]
Concentration risk, percentage	40.00%	39.00%	26.00%	52.00%
Customer Concentration Risk [Member]
Revenue, Major Customer [Line Items]
Concentration risk, percentage	55.00%	54.00%	54.00%	59.00%
Customer Concentration Risk [Member] \| Raytheon Company [Member]
Revenue, Major Customer [Line Items]
Concentration risk, percentage	29.00%	36.00%	33.00%	35.00%
Customer Concentration Risk [Member] \| Lockheed Martin Corporation [Member]
Revenue, Major Customer [Line Items]
Concentration risk, percentage	26.00%	18.00%	21.00%	24.00%

Operating Segment, Geographic Information and Significant Customers - Programs Comprising Ten Percent or more of Company's Revenue (Detail) - Sales Revenue, Net [Member]	3 Months Ended		6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014 Rate	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Concentration risk, percentage	40.00%	39.00%	26.00%	52.00%
SEWIP Program [Member] \| Program Concentration Risk [Member]
Segment Reporting Information [Line Items]
Concentration risk, percentage	16.00%		12.00%	13.00%
F-35 Program [Member] \| Program Concentration Risk [Member]
Segment Reporting Information [Line Items]
Concentration risk, percentage	13.00%	11.00%		11.00%
Patriot Program [Member] \| Program Concentration Risk [Member]
Segment Reporting Information [Line Items]
Concentration risk, percentage	11.00%	18.00%	14.00%	18.00%
Aegis Program [Member] \| Program Concentration Risk [Member]
Segment Reporting Information [Line Items]
Concentration risk, percentage		10.00%		10.00%