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Fiscal 2014-2015 Plan Fiscal Two Thousand Fourteen-Fifteen Plan [Member] Fiscal Two Thousand Fourteen-Fifteen Plan [Member] Fiscal 2013-2014 Plan Fiscal Two Thousand Thirteen-Fourteen Plan [Member] Fiscal Two Thousand Thirteen-Fourteen Plan [Member] Restructuring Type [Axis] Restructuring Type [Axis] Type of Restructuring [Domain] Type of Restructuring [Domain] Severance and benefits Employee Severance [Member] Facilities and other Facility Closing [Member] Government Fund Penalty Other Restructuring [Member] Restructuring Cost and Reserve [Line Items] Restructuring Cost and Reserve [Line Items] Costs Incurred Restructuring Charges Cumulative Costs Incurred Through April 3, 2015 Restructuring and Related Cost, Cost Incurred to Date Estimated Additional Costs to be Incurred Restructuring and Related Cost, Expected Cost Remaining Total Restructuring Costs Expected to be Incurred Restructuring and Related Cost, Expected Cost Severance and Benefits Facilities and Other Restructuring 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in) Operating Activities [Abstract] Amortization of identifiable intangible assets Amortization of Intangible Assets Depreciation and amortization of property, plant and equipment Depreciation Bad debt expense Provision for Doubtful Accounts Share-based compensation expense Share-based Compensation Charges for inventory and customer service inventory write-downs Gain on disposition of the WiMAX business Gain (Loss) on Disposition of Business Changes in operating assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Receivables Increase (Decrease) in Accounts Receivable Unbilled costs Increase (Decrease) in Unbilled Receivables Inventories Increase (Decrease) in Inventories Customer service inventories Increase Decrease in Customer Service Inventories Increase decrease in customer service inventories Accounts payable Increase (Decrease) in Accounts Payable Accrued expenses Increase (Decrease) in Accrued Liabilities Advance payments and unearned income Increase (Decrease) in Deferred Revenue and Customer Advances and Deposits Income taxes payable or receivable Increase (Decrease) in Income Taxes Payable, Net of Income Taxes Receivable Reserve for uncertain tax positions and deferred taxes Increase (Decrease) in Reserve for Uncertain Tax Positions and Deferred Taxes Increase (Decrease) in Reserve for Uncertain Tax Positions and Deferred Taxes Other assets and liabilities Increase (Decrease) in Other Operating Assets and Liabilities, Net Net cash used in operating activities Net Cash Provided by (Used in) Operating Activities Investing Activities Net Cash Provided by (Used in) Investing Activities [Abstract] Additions of property, plant and equipment Payments to Acquire Property, Plant, and Equipment Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Financing Activities Net Cash Provided by (Used in) Financing Activities [Abstract] Proceeds from short-term debt Proceeds from Short-term Debt Repayments of short-term debt Repayments of Short-term Debt Payments on capital leases Repayments of Long-term Capital Lease Obligations Issuance of common stock under employee stock plans Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Including Stock Options Net cash provided by (used in) 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 Decrease in Cash and Cash Equivalents Cash and Cash Equivalents, Period Increase (Decrease) Cash and Cash Equivalents, Beginning of Period Cash and Cash Equivalents, at Carrying Value Cash and Cash Equivalents, End of Period Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Schedule of Revision of Previously Issued Condensed Consolidated Interim Financial 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Depreciation and amortization Depreciation, Depletion and Amortization Income Statement [Abstract] Revenues: Revenues [Abstract] Revenue from services Sales Revenue, Services, Net Cost of revenues: Cost of Goods and Services Sold [Abstract] Cost of services Cost of Services Operating expenses: Operating Expenses [Abstract] Research and development expenses Research and Development Expense Selling and administrative expenses Selling, General and Administrative Expense Amortization of identifiable intangible assets Restructuring charges Total operating expenses Operating Expenses Interest income Investment Income, Interest Interest expense Interest Expense Loss from continuing operations before income taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Provision for income taxes Income Tax Expense (Benefit) Loss from continuing operations Income (Loss) from Continuing Operations Attributable to Parent Income from discontinued operations, net of tax Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent Net loss Basic and diluted income (loss) per common share: Earnings Per Share, Basic and Diluted [Abstract] Continuing operations (usd per share) Income (Loss) from Continuing Operations, Per Basic and Diluted Share Discontinued operations (usd per share) Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic and Diluted Share Net loss (usd per share) Weighted average shares outstanding, basic and diluted (share) Weighted Average Number of Shares Outstanding, Basic and Diluted Expected dividends Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Expected volatility Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Risk-free interest rate Share-based Compensation Arrangement by 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Credit facility sublimit available for Singapore Line of Credit Facility, Capacity Available for Specific Purpose Other than for Trade Purchases Credit facility, early termination fee as percentage of the revolving line Line Of Credit Facility, Early Termination Fee Percentage The early termination fee, expressed as a percentage of the line of credit facility under the credit facility. Available credit under credit facility Line of Credit Facility, Remaining Borrowing Capacity Borrowing base, calculated amount Line of Credit Facility, Current Borrowing Capacity Letters of credit Letters of Credit Outstanding, Amount Debt instrument, description of variable rate basis Debt Instrument, Description of Variable Rate Basis Basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate Period of interest payment due Debt Instrument, Period of Interest Payment Due Debt Instrument, Period of Interest Payment Due Weight average interest rate Debt Instrument, Interest Rate During Period Additional spread on applicable rate in event of default Debt Instrument, Debt Default, Basis Spread on Applicable Interest Rate Debt Instrument, Debt Default, Basis Spread on Applicable Interest Rate Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Use of estimates Use of Estimates, Policy [Policy Text Block] Recently Issued and Adopted Accounting Standards 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Tax Rate, Percent Rent expense Operating Leases, Rent Expense 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] WiMAX WiMAX [Member] WiMAX [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] Proceeds from divestiture of businesses Proceeds from Divestiture of Businesses Discontinued operations contingent consideration Discontinued Operations Contingent Consideration Discontinued Operations Contingent Consideration Proceeds from contingent payments Proceeds from Contingent Payments Proceeds from Contingent Payments Potential cash payments to EION for collections of WiMAX receivables Discontinued Operations Potential Cash Payments to Acquiree Discontinued Operations Potential Cash Payments to Acquiree Payment on Divestiture Payables Payment on Divestiture Payables Payment on Divestiture Payables Accounts, notes and loans receivable, write-down Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Write-Down Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Write-Down Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract] Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract] Revenues Disposal Group, Including Discontinued Operation, Revenue Income from operations related to WiMAX Disposal Group, Including Discontinued Operation, Operating 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[Member] Portion at Fair Value Measurement [Member] Cost Reported Value Measurement [Member] Fair Value Estimate of Fair Value Measurement [Member] Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Domain] Cash and Cash Equivalents [Domain] Money market funds Money Market Funds [Member] Bank certificates of deposit Bank Time Deposits [Member] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Assets [Abstract] Assets, Fair Value Disclosure [Abstract] Cash equivalents: Cash and Cash Equivalents [Abstract] Cash equivalents Cash and Cash Equivalents, Fair Value Disclosure Number of financial institutions Number of Financial Institutions Number of Financial Institutions Money market, net asset value (usd per share) Net Asset Value Per Share Fair Value Disclosure Net Asset Value Per Share Fair Value Disclosure Income Taxes Income Tax Disclosure [Text Block]