Accounting Policies [Abstract] Basic and Diluted Weighted Average Shares Outstanding Schedule of Weighted Average Number of Shares [Table Text Block] Statement of Financial Position [Abstract] Accounts receivable, allowance for doubtful accounts Allowance for Doubtful Accounts Receivable, Current Preferred stock, par value Preferred Stock, Par or Stated Value Per Share Preferred stock, shares authorized Preferred Stock, Shares Authorized Preferred stock, shares issued Preferred Stock, Shares Issued Preferred stock, shares outstanding Preferred Stock, Shares Outstanding Common stock, par value Common Stock, Par or Stated Value Per Share Common stock, shares authorized Common Stock, Shares Authorized Common stock, shares issued Common Stock, Shares, Issued Common stock, shares outstanding Common Stock, Shares, Outstanding Other Income and Expenses [Abstract] Schedule of Restructuring and Related Costs [Table] Schedule of Restructuring and Related Costs [Table] Business Segments Segments [Axis] Segment [Domain] Segments [Domain] MCE Mercury Commercial Electronics [Member] Mercury Commercial Electronics [Member] Restructuring Cost and Reserve [Line Items] Restructuring Cost and Reserve [Line Items] Restructuring and Related Cost, Expected Cost Restructuring and Related Cost, Expected Cost Restructuring expenses Restructuring Charges Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Summary of Stock Option Plans Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] Summary of Nonvested Restricted Stock Schedule of Nonvested Share Activity [Table Text Block] Stock Based Compensation Expenses Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block] Number of programs using products and services Nature of Business, Number of Programs Using Products and Services Nature of Business, Number of Programs Using Products and Services Number of contractors using products and services Nature of Business, Number of Contractors Using Products and Services Nature of Business, Number of Contractors Using Products and Services Subsequent Events [Abstract] Subsequent Events Subsequent Events [Text Block] MDS Mercury Defense Systems [Member] Mercury Defense Systems [Member] Restructuring Type Restructuring Type [Axis] Type of Restructuring [Domain] Type of Restructuring [Domain] Severance & Related [Member] Employee Severance [Member] Facility & Other [Member] Facility Closing [Member] Restructuring Reserve [Roll Forward] Restructuring Reserve [Roll Forward] Restructuring liability at beginning of period Restructuring Reserve, Current Restructuring, Settlement and Impairment Provisions Restructuring, Settlement and Impairment Provisions Cash paid Payments for Restructuring Reversals Restructuring Expense Reversal Reversal of unused restructuring accrual. Restructuring liability at end of period Income Statement [Abstract] Net revenues Revenues Cost of revenues Cost of Revenue Gross margin Gross Profit Operating expenses: Operating Expenses [Abstract] Selling, general and administrative Selling, General and Administrative Expense Research and development Research and Development Expense Amortization of intangible assets Amortization of Intangible Assets Restructuring and other charges Acquisition costs and other related expenses Business Combination, Acquisition Related Costs Total operating expenses Operating Expenses Income (loss) from operations Operating Income (Loss) Interest income Investment Income, Interest Interest expense Interest Expense Other income, net Other Nonoperating Income (Expense) Income (loss) from continuing operations before income taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Tax provision (benefit) Income Tax Expense (Benefit) Income (loss) from continuing operations Income (Loss) from Continuing Operations Attributable to Parent Loss from discontinued operations, net of income taxes Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent Net income (loss) Net Income (Loss) Attributable to Parent Basic net loss per share: (in dollars per share) Income (Loss) from Continuing Operations, Per Basic Share Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Basic Share Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Basic Share Earnings Per Share, Basic Earnings Per Share, Basic Diluted net loss per share: (in dollars per share) Income (Loss) from Continuing Operations, Per Diluted Share Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Diluted Share Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Diluted Share Earnings Per Share, Diluted Earnings Per Share, Diluted Weighted-average shares outstanding: Weighted Average Number Basic And Diluted Shares Outstanding [Abstract] Weighted Average Number Basic And Diluted, Shares Outstanding [Abstract] Basic (in shares) Weighted Average Number of Shares Outstanding, Basic Diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Comprehensive income (loss): Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] Foreign currency translation adjustments Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Total comprehensive income (loss) Comprehensive Income (Loss), Net of Tax, Attributable to Parent Segment Reporting [Abstract] Reconciliation of Revenue from Segments to Consolidated [Table] Reconciliation of Revenue from Segments to Consolidated [Table] Consolidation Items [Axis] Consolidation Items [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Segment Reconciling Items [Member] Segment Reconciling Items [Member] Intersegment Eliminations [Member] Intersegment Eliminations [Member] Operating Segments [Member] Operating Segments [Member] Segment Reconciling Items and Intersegment Eliminations [Member] Segment Reconciling Items and Intersegment Eliminations [Member] Segment Reconciling Items and Intersegment Eliminations [Member] Segment Reporting, Revenue Reconciling Item [Line Items] Segment Reporting, Revenue Reconciling Item [Line Items] Net revenues Adjusted EBITDA Adjusted Earnings Before Interest Taxes Depreciation And Amortization Tabular disclosure of adjusted EBITDA. Adjusted EBITDA is defined as earnings from continuing operations before interest income and expense, income taxes, depreciation, amortization of acquired intangible assets, restructuring, impairment of long-lived assets, acquisition costs and other related expenses, fair value adjustments from purchase accounting and stock-based compensation costs. Restructuring and Related Activities [Abstract] Expenses by Reportable Segment for Restructuring Plans Schedule of Restructuring Reserve by Type of Cost [Table Text Block] Goodwill and Intangible Assets Disclosure [Abstract] Changes in Carrying Amount of Goodwill Schedule of Goodwill [Table Text Block] Commitments and Contingencies Disclosure [Abstract] Long-term Purchase Commitment [Table] Long-term Purchase Commitment [Table] Category of Item Purchased Category of Item Purchased [Axis] Long-term Purchase Commitment, Category of Item Purchased [Domain] Long-term Purchase Commitment, Category of Item Purchased [Domain] Non-cancelable purchase commitments Non Cancelable Purchase Commitments [Member] Non Cancelable Purchase Commitments [Member] Long-term Purchase Commitment [Line Items] Long-term Purchase Commitment [Line Items] Purchase commitments for less than one year Purchase Commitment, Remaining Minimum Amount Committed Summary of Performance of Operations by Reportable Segment Schedule of Segment Reporting Information, by Segment [Table Text Block] Reconciliation of Net Income (loss), Most Directly Comparable GAAP Financial Measure to Adjusted EBITDA Schedule Of Reconciliation Of Net Income [Table Text Block] Tabular disclosure of the reconciliation from the entity's net income or loss to its adjusted EBITDA. Adjusted EBITDA is defined as earnings from continuing operations before interest income and expense, income taxes, depreciation, amortization of acquired intangible assets, restructuring, impairment of long-lived assets, acquisition costs and other related expenses, fair value adjustments from purchase accounting and stock-based compensation costs. Geographic Distribution of Revenues and Long Lived Assets from Continuing Operations Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block] Customers Comprising Ten Percent or More Revenues Schedule of Revenue by Major Customers by Reporting Segments [Table Text Block] Schedules of Concentration of Risk, by Risk Factor [Table Text Block] Schedules of Concentration of Risk, by Risk Factor [Table Text Block] Schedule of Revenue by Major Customers, by Reporting Segments [Table] Schedule of Revenue by Major Customers, by Reporting Segments [Table] Concentration Risk Type [Axis] Concentration Risk Type [Axis] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Customer Concentration Risk [Member] Customer Concentration Risk [Member] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Sales Revenue, Net [Member] Sales Revenue, Net [Member] Customer [Axis] Customer [Axis] Customer [Domain] Customer [Domain] Raytheon Company [Member] Raytheon Company [Member] Raytheon Company [Member] Lockheed Martin Corporation [Member] Lockheed Martin Corporation [Member] Lockheed Martin Corporation [Member] Northrop Grumman Corporation [Member] Northrop Grumman Corporation [Member] Northrop Grumman Corporation [Member] Revenue, Major Customer [Line Items] Revenue, Major Customer [Line Items] Concentration risk, percentage Concentration Risk, Percentage Debt Disclosure [Abstract] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Key Bank Credit Facility [Member] Key Bank Credit Facility [Member] Key Bank Credit Facility [Member] Lender Name [Axis] Lender Name [Axis] Line of Credit Facility, Lender [Domain] Line of Credit Facility, Lender [Domain] Senior Unsecured Credit Facilities Senior Unsecured Credit Facilities [Member] Senior Unsecured Credit Facilities [Member] Range Range [Axis] Range [Domain] Range [Domain] Maximum Maximum [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Remaining borrowing capacity Line of Credit Facility, Remaining Borrowing Capacity Line of Credit Facility, Maximum Borrowing Capacity Line of Credit Facility, Maximum Borrowing Capacity Borrowings outstanding Long-term Line of Credit Amount of outstanding letter of credit Letters of Credit Outstanding, Amount Income Tax Disclosure [Abstract] Income tax (benefit) expense (Loss) income from operations before income taxes Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range Not Possible Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range Not Possible Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Award Type Award Type [Axis] Award Type [Domain] Equity Award [Domain] Restricted Stock Restricted Stock [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Number of Shares Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Beginning Balance Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Granted Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Vested Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Forfeited Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Ending Balance Weighted Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Beginning Balance Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Granted Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Vested Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Forfeited Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Ending Balance Description of Business Nature of Operations [Text Block] Document Documentand Entity Information [Abstract] Document Documentand Entity Information [Abstract] Entities [Table] Entities [Table] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Document Information [Line Items] Document Information [Line Items] Document Type Document Type Amendment Flag Amendment Flag Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Trading Symbol Trading Symbol Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Operating Segment, Geographic Information and Significant Customers Segment Reporting Disclosure [Text Block] Inventory Disclosure [Abstract] Inventory Inventory Disclosure [Text Block] Discontinued Operations and Disposal Groups [Abstract] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Table] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Table] Disposal Group Name [Axis] Disposal Group Name [Axis] Disposal Groups, Including Discontinued Operations, Name [Domain] Disposal Groups, Including Discontinued Operations, Name [Domain] MIS [Member] Mercury Intelligence Systems Business Unit [Member] Mercury Intelligence Systems Business Unit [Member] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Depreciation Disposal Group, Including Discontinued Operation, Depreciation Disposal Group, Including Discontinued Operation, Depreciation Amortization of intangible assets Disposal Group, Including Discontinued Operation, Amortization Disposal Group, Including Discontinued Operation, Amortization Capital expenditures Disposal Group, Including Discontinued Operation, Capital Expenditures Disposal Group, Including Discontinued Operation, Capital Expenditures Disposal Group, Including Discontinued Operation, Restructuring and Other Costs Disposal Group, Including Discontinued Operation, Restructuring and Other Costs Disposal Group, Including Discontinued Operation, Restructuring and Other Disposal Group, Including Discontinued Operation, Acquisition Costs and Other Related Charges Disposal Group, Including Discontinued Operation, Acquisition Costs and Other Related Charges Disposal Group, Including Discontinued Operation, Acquisition Costs and Other Related Charges Impairment of goodwill Disposal Group, Including Discontinued Operation, Impairment of Goodwill Disposal Group, Including Discontinued Operation, Impairment of Goodwill Stock-based compensation expense Disposal Group, Including Discontinued Operation, Share-based Compensation Disposal Group, Including Discontinued Operation, Share-based Compensation Schedule of Goodwill [Table] Schedule of Goodwill [Table] Goodwill [Line Items] Goodwill [Line Items] Goodwill [Roll Forward] Goodwill [Roll Forward] Beginning Balance Goodwill Ending Balance Raw materials Inventory, Raw Materials, Net of Reserves Work in process Inventory, Work in Process, Net of Reserves Finished goods Inventory, Finished Goods, Net of Reserves Total Inventory, Net Restructuring Plan Restructuring and Related Activities Disclosure [Text Block] Assets Assets [Abstract] Current assets: Assets, Current [Abstract] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Accounts receivable, net of allowance for doubtful accounts of $57 and $34 at March 31, 2015 and June 30, 2014, respectively Accounts Receivable, Net, Current Unbilled receivables and costs in excess of billings Costs in Excess of Billings, Current Inventory Deferred income taxes Deferred Tax Assets, Net of Valuation Allowance, Current Prepaid income taxes Prepaid Taxes Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Disposal Group, Including Discontinued Operation, Assets, Current Disposal Group, Including Discontinued Operation, Assets, Current Total current assets Assets, Current Restricted cash Restricted Cash and Cash Equivalents, Noncurrent Property and equipment, net Property, Plant and Equipment, Net Goodwill Intangible assets, net Intangible Assets, Net (Excluding Goodwill) Other non-current assets Other Assets, Noncurrent Disposal Group, Including Discontinued Operation, Assets, Noncurrent Disposal Group, Including Discontinued Operation, Assets, Noncurrent Total assets Assets Liabilities and Shareholders' Equity Liabilities and Equity [Abstract] Current liabilities: Liabilities, Current [Abstract] Accounts payable Accounts Payable, Current Accrued expenses Accrued Liabilities, Current Accrued compensation Employee-related Liabilities, Current Deferred revenues and customer advances Deferred Revenue, Current Disposal Group, Including Discontinued Operation, Liabilities, Current Disposal Group, Including Discontinued Operation, Liabilities, Current Total current liabilities Liabilities, Current Deferred gain on sale-leaseback Sale Leaseback Transaction, Deferred Gain, Net Deferred income taxes Deferred Tax Liabilities, Net, Noncurrent Income taxes payable Accrued Income Taxes, Noncurrent Other non-current liabilities Other Liabilities, Noncurrent Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent Total liabilities Liabilities Commitments and contingencies (Note I) Commitments and Contingencies Shareholders' equity: Stockholders' Equity Attributable to Parent [Abstract] Preferred stock, $0.01 par value; 1,000,000 shares authorized; no shares issued or outstanding Preferred Stock, Value, Issued Common stock, $0.01 par value; 85,000,000 shares authorized; 32,361,497 and 31,284,273 shares issued and outstanding at March 31, 2015 and June 30, 2014, respectively Common Stock, Value, Issued Additional paid-in capital Additional Paid in Capital Retained earnings Retained Earnings (Accumulated Deficit) Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax Total shareholders' equity Stockholders' Equity Attributable to Parent Total liabilities and shareholders' equity Liabilities and Equity Goodwill Goodwill Disclosure [Text Block] Earnings Per Share [Abstract] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Basic weighted-average shares outstanding Effect of dilutive equity instruments Weighted Average Number Diluted Shares Outstanding Adjustment Diluted weighted-average shares outstanding Reportable Geographical Components [Member] Reportable Geographical Components [Member] Geography Eliminations [Member] Geography Eliminations [Member] Geographical Geographical [Axis] Segment, Geographical [Domain] Geographical [Domain] US UNITED STATES Europe Europe [Member] Asia Pacific Asia Pacific [Member] Identifiable long-lived assets Long-Lived Assets Discontinued Operations Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs, by Report Line [Axis] Income Statement Location [Axis] Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Report Line [Domain] Income Statement Location [Domain] Cost of revenues Cost of Sales [Member] Selling, general and administrative Selling, General and Administrative Expenses [Member] Research and development Research and Development Expense [Member] Share-based compensation expense before tax Allocated Share-based Compensation Expense Income taxes Employee Service Share-based Compensation, Tax Benefit from Compensation Expense Net compensation expense Allocated Share-based Compensation Expense, Net of Tax Significant Accounting Policies [Table] Significant Accounting Policies [Table] Significant Accounting Policies [Table] Deferred Revenue Arrangement Type [Axis] Deferred Revenue Arrangement Type [Axis] Deferred Revenue Arrangement Type [Domain] Deferred Revenue [Domain] Multiple Delivery Revenue [Member] Multiple Delivery Revenue [Member] Multiple Delivery Revenue [Member] Significant Accounting Policies [Line Items] Significant Accounting Policies [Line Items] Significant Accounting Policies [Line Items] Percentage Of Revenue Recognized Percentage Of Revenue Recognized Percentage of total revenue recognized under multiple-deliverable arrangements during the reporting periods. Debt Debt Disclosure [Text Block] Inventory Schedule of Inventory, Current [Table Text Block] Plan Name Plan Name [Axis] Plan Name [Domain] Plan Name [Domain] 2005 Stock Incentive Plan Stock Option Plan Twenty Zero Five [Member] Stock Option Plan, Twenty Zero Five [Member] Performance Shares [Member] Performance Shares [Member] Employee Stock [Member] Employee Stock [Member] Shares authorized for issuance under stock incentive plan Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Exercise price of stock option, percentage Minimum Grant Date Fair Value Of Nonqualified Stock Options As Percentage Of Fair Value Of Common Stock Minimum Grant Date Fair Value Of Nonqualified Stock Options As Percentage Of Fair Value Of Common Stock Term of stock option Share Based Compensation Arrangement By Share Based Payment Award Contractual Life Maximum number of years for the company's stock options before they expire. Shares available for future grant Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Vesting period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 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 Share-based Compensation Arrangement by Share-based Payment Award, Discount from Market Price, Offering Date Percentage of employee compensation that may be uses to purchase common stock through payroll deductions, maximum Employee Stock Purchase Plan Maximum Percentage Of Compensation To Purchase Shares By Eligible Participants Employee Stock Purchase Plan, Maximum Percentage of Compensation to Purchase Shares By Eligible Participants Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Revenue Recognition Revenue Recognition, Policy [Policy Text Block] Weighted-Average Shares Earnings Per Share, Policy [Policy Text Block] Net revenues of discontinued operations Disposal Group, Including Discontinued Operation, Revenue Costs of discontinued operations: Disposal Group, Including Discontinued Operation, Costs [Abstract] Disposal Group, Including Discontinued Operation, Costs [Abstract] Cost of revenues Disposal Group, Including Discontinued Operation, Costs of Goods Sold Selling, general and administrative Disposal Group, Including Discontinued Operation, Selling, General and Administrative Expense Disposal Group, Including Discontinued Operation, Selling, General and Administrative Expense Research and development Disposal Group, Including Discontinued Operation, Research and Development Disposal Group, Including Discontinued Operation, Research and Development Goodwill, Impairment Loss (Loss) income from discontinued operations before income taxes Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax Tax (benefit) provision Discontinued Operation, Tax Effect of Discontinued Operation (Loss) income from discontinued operations Stock-Based Compensation Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Income Taxes Income Tax Disclosure [Text Block] Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Fair Value Disclosures [Abstract] Fair Value of Financial Instruments Fair Value Disclosures [Text Block] Interest expense, net Interest Income (Expense), Net Depreciation Depreciation Stock-based compensation expense Acquisition and Financing Costs Acquisition and Financing Costs Acquisition and Financing Costs Stock Options Employee Stock Option [Member] Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized Number of Shares Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Outstanding at beginning of period Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Granted Exercised Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Cancelled Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period Outstanding at end of period Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Outstanding at beginning of period Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Granted Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Exercised Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Cancelled Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price Outstanding at end of period Weighted Average Remaining Contractual Term (Years) Share Based Compensation Arrangement By Share Based Payment Award Options Weighted Average Remaining Contractual Term [Abstract] Share-based Compensation Arrangement by Share-based Payment Award, Options, Weighted Average Remaining Contractual Term [Abstract] Outstanding at end of period Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Schedule of discontinued operations Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures [Table Text Block] Disposal Group, Including Discontinued Operation, Consideration Disposal Group, Including Discontinued Operation, Consideration Proceeds from Divestiture of Businesses Proceeds from Divestiture of Businesses Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax Statement of Cash Flows [Abstract] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Net income (loss) Adjustments to reconcile net income (loss) to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation and amortization expense Depreciation, Depletion and Amortization Stock-based compensation expense Share-based Compensation Benefit for deferred income taxes Deferred Income Tax Expense (Benefit) Goodwill, Impairment Loss Goodwill, Impairment Loss Excess tax benefit from stock-based compensation Excess Tax Benefit from Share-based Compensation, Operating Activities Other non-cash items Other Noncash Income (Expense) Changes in operating assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Accounts receivable, unbilled receivable, and cost in excess of billings Increase (Decrease) in Accounts Receivable Inventory Increase (Decrease) in Inventories Prepaid income taxes Increase (Decrease) in Prepaid Taxes Prepaid expenses and other current assets Increase (Decrease) in Prepaid Expense Other non-current assets Increase (Decrease) in Other Noncurrent Assets Accounts payable and accrued expenses Increase (Decrease) in Accounts Payable and Accrued Liabilities Deferred revenues and customer advances Increase (Decrease) in Deferred Revenue and Customer Advances and Deposits Income taxes payable Increase (Decrease) in Income Taxes Payable Other non-current liabilities Increase (Decrease) in Other Noncurrent Liabilities Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Purchases of property and equipment Payments to Acquire Property, Plant, and Equipment Increase in other investing activities Payments for (Proceeds from) Other Investing Activities Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Proceeds from employee stock plans Proceeds from Stock Options Exercised Excess tax benefits from stock-based compensation Excess Tax Benefit from Share-based Compensation, Financing Activities Payments of capital lease obligations Repayments of Debt and Capital Lease Obligations Net cash provided by financing activities Net Cash Provided by (Used in) Financing Activities Effect of exchange rate changes on cash and cash equivalents Effect of Exchange Rate on Cash and Cash Equivalents Net increase in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Cash and cash equivalents at beginning of period Cash and cash equivalents at end of period Cash paid (received) during the period for: Supplemental Cash Flow Information [Abstract] Interest Interest Paid Income taxes Income Taxes Paid, Net Supplemental disclosures-non-cash activities: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Issuance of restricted stock awards to employees Stock Issued Capital lease financings Capital Lease Obligations Incurred Schedule of Inventory [Table] Schedule Of Inventory [Table] Schedule of Inventory [Table] Products and Services [Axis] Products and Services [Axis] Products and Services [Domain] Products and Services [Domain] Product Product [Member] Schedule of Inventory [Line Items] Schedule Of Inventory [Line Items] Schedule of Inventory [Line Items] Increase in Inventory Inventory relating to contracts having production cycles longer than one year Inventory for Long-term Contracts or Programs, Gross Production Cycle Term Operating Cycle Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Patriot Program [Member] Patriot Program [Member] Patriot Program [Member] F-35 Program [Member] F-35 Program [Member] F-35 Program [Member] Aegis Program [Member] Aegis Program [Member] Aegis Program [Member] Program Concentration Risk [Member] Program Concentration Risk [Member] Program Concentration Risk [Member] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Summary of Financial Assets Measured at Fair Value Fair Value, Assets Measured on Recurring Basis [Table Text Block] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Measurement Basis [Axis] Measurement Basis [Axis] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Portion at Fair Value Measurement [Member] Portion at Fair Value Measurement [Member] Fair Value Estimate of Fair Value Measurement [Member] Asset Class [Axis] Asset Class [Axis] Asset Class [Domain] Asset Class [Domain] Cash and cash equivalents Cash and Cash Equivalents [Member] Restricted cash Restricted Cash [Member] Restricted Cash [Member] Measurement Frequency [Axis] Measurement Frequency [Axis] Fair Value, Measurement Frequency [Domain] Fair Value, Measurement Frequency [Domain] Fair Value, Measurements, Recurring [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Level 1 Fair Value, Inputs, Level 1 [Member] Level 2 Fair Value, Inputs, Level 2 [Member] Level 3 Fair Value, Inputs, Level 3 [Member] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Assets: Assets, Fair Value Disclosure [Abstract] Fair value measurement disclosure Assets, Fair Value Disclosure Accounts receivable, net Disposal Group, Including Discontinued Operation, Trade Receivables Unbilled receivables and costs in excess of billings Disposal Group, Including Discontinued Operations, Unbilled Receivables and Costs in Excess of Billings, Current Disposal Group, Including Discontinued Operations, Unbilled Receivables and Costs in Excess of Billings, Current Deferred income taxes Disposal Group, Including Discontinued Operation, Deferred Tax Asset, Current Disposal Group, Including Discontinued Operation, Prepaid and Other Assets Disposal Group, Including Discontinued Operation, Prepaid and Other Assets Prepaid expenses and other current assets Disposal Group, Including Discontinued Operation, Prepaid and Other Assets, Current Property and equipment, net Disposal Group, Including Discontinued Operation, Property, Plant and Equipment, Noncurrent Goodwill Disposal Group, Including Discontinued Operation, Goodwill, Noncurrent Intangible assets, net Disposal Group, Including Discontinued Operation, Intangible Assets, Noncurrent Other non-current assets Disposal Group, Including Discontinued Operation, Other Assets, Noncurrent Assets of discontinued operations Disposal Group, Including Discontinued Operation, Assets Accounts payable Disposal Group, Including Discontinued Operation, Accounts Payable, Current Accrued expenses Disposal Group, Including Discontinued Operation, Accrued Liabilities, Current Accrued compensation Disposal Group, Including Discontinued Operation, Employee-related Liabilities, Current Disposal Group, Including Discontinued Operation, Employee-related Liabilities, Current Deferred income taxes Disposal Group, Including Discontinued Operation, Deferred Tax Liabilities, Noncurrent Liabilities of discontinued operations Disposal Group, Including Discontinued Operation, Liabilities