Earnings Per Share [Abstract] Schedule of Computation of Basic and Diluted Net Loss Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of Potentially Dilutive Securities Excluded from the Computation of Diluted Net Loss Per Share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Summary of Stock Option Activity Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] Summary of Restricted Stock Unit Activity Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block] Summary of the Components of Total Stock-Based Compensation Expense Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block] Summary of Stock-Based Compensation Associated with Each Type of Award Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block] Summary of the Weighted-Average Grant Date Fair Value of Options Granted Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] 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 [Axis] Award Type [Axis] Award Type [Domain] Equity Award [Domain] Restricted stock units Restricted Stock Units (RSUs) [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] RSUs Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Outstanding, beginning balance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Vested (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Canceled (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Outstanding, ending balance (in shares) Weighted Average Fair Value per Share at Grant Date Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Outstanding, beginning balance (in usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Granted (in usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Vested (in usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Canceled (in usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Outstanding, ending balance (in usd per share) Stock options and restricted stock units Employee Stock Options and Restricted Stock Units [Member] Employee Stock Options and Restricted Stock Units [Member] Employee stock purchase plan Employee Stock [Member] Total stock-based compensation expense Allocated Share-based Compensation Expense NET LOSS PER SHARE Earnings Per Share [Text Block] Goodwill and Intangible Assets Disclosure [Abstract] Schedule of Goodwill and Intangible Assets Schedule of Intangible Assets and Goodwill [Table Text Block] Schedule of Estimated Future Amortization Expense Related to Finite-Lived Intangible Assets Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Statement of Financial Position [Abstract] Allowances, accounts receivable Allowance for Doubtful Accounts Receivable Warranty obligations, current at fair value Product Warranty Accrual, Current, Fair Value Disclosure Product Warranty Accrual, Current, Fair Value Disclosure Warranty obligations, non-current at fair value Product Warranty Accrual, Noncurrent, Fair Value Disclosure Product Warranty Accrual, Noncurrent, Fair Value Disclosure Preferred stock, par value (in usd per share) Preferred Stock, Par or Stated Value Per Share Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Preferred stock, shares issued (in shares) Preferred Stock, Shares Issued Preferred stock, shares outstanding (in shares) Preferred Stock, Shares Outstanding Common stock, par value (in usd per share) Common Stock, Par or Stated Value Per Share Common stock, shares authorized (in shares) Common Stock, Shares Authorized Common stock, shares issued (in shares) Common Stock, Shares, Issued Common stock, shares outstanding (in shares) Common Stock, Shares, Outstanding Fair Value Disclosures [Abstract] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Level 3 Fair Value, Inputs, Level 3 [Member] Measurement Frequency [Axis] Measurement Frequency [Axis] Fair Value, Measurement Frequency [Domain] Fair Value, Measurement Frequency [Domain] Recurring Fair Value, Measurements, Recurring [Member] Liability Class [Axis] Liability Class [Axis] Fair Value by Liability Class [Domain] Fair Value by Liability Class [Domain] Warranty obligations Warranty, Rights and Obligations, Fair Value Option [Member] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Balance at beginning of period Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value Accruals for warranties issued during period Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Warranties Issued Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Warranties Issued Changes in estimates Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability, Change in Estimate Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability, Change in Estimate Settlements Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Payments Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Payments Increase due to accretion expense Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings Other Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Other Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Other Balance at end of period Income Tax Disclosure [Abstract] INCOME TAXES Income Tax Disclosure [Text Block] GOODWILL AND INTANGIBLE ASSETS Goodwill and Intangible Assets Disclosure [Text Block] Inventory Disclosure [Abstract] Summary of Inventory Schedule of Inventory, Current [Table Text Block] Product Warranties Disclosures [Abstract] WARRANTY OBLIGATIONS Product Warranty Disclosure [Text Block] Document and Entity Information [Abstract] Document and entity information. Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Document Type Document Type Document Period End Date Document Period End Date Amendment Flag Amendment Flag Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Current Fiscal Year End Current Fiscal Year End Date Entity Filer Category Entity Filer Category Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Numerator: Net Income (Loss) Attributable to Parent [Abstract] Net loss Net Income (Loss) Attributable to Parent Denominator: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Weighted average number of common shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic and Diluted Net loss per share, basic and diluted (in usd per share) Earnings Per Share, Basic and Diluted Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Table] Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Table] Eligible Item or Group for Fair Value Option [Axis] Eligible Item or Group for Fair Value Option [Axis] Fair Value, Option, Eligible Item or Group [Domain] Fair Value, Option, Eligible Item or Group [Domain] Warranty obligations for microinverters sold since January 1, 2014 Contingent consideration liability Guarantees [Member] Valuation Technique [Axis] Valuation Technique [Axis] Valuation Technique [Domain] Valuation Technique [Domain] Discounted cash flows Income Approach Valuation Technique [Member] Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] Profit element and risk premium Fair Value Inputs, Profit Element and Risk Premium Fair Value Inputs, Profit Element and Risk Premium Credit-adjusted risk-free rate Fair Value Inputs, Entity Credit Risk Risk-adjusted discount rate Fair Value Inputs, Discount Rate Income Statement [Abstract] Net revenues Revenue, Net Cost of revenues Cost of Revenue Gross profit Gross Profit Operating expenses: Operating Expenses [Abstract] Research and development Research and Development Expense Sales and marketing Selling and Marketing Expense General and administrative General and Administrative Expense Total operating expenses Operating Expenses Loss from operations Income (Loss) from Continuing Operations Attributable to Parent Other income (expense), net: Other Nonoperating Income (Expense) [Abstract] Interest expense Interest Expense Other (expense) income Other Nonoperating Income (Expense) Total other expense, net Nonoperating Income (Expense) Loss before income taxes Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest Provision for income taxes Income Tax Expense (Benefit) Net loss Net loss per share, basic and diluted (in usd per share) Income (Loss) from Continuing Operations, Per Basic and Diluted Share Shares used in computing net loss per share, basic and diluted (in shares) Product Warranty Liability [Table] Product Warranty Liability [Table] Product Warranty Liability [Line Items] Product Warranty Liability [Line Items] Changes in warranty estimates Product Warranty Accrual, Preexisting, Increase (Decrease) Warranty obligations Product Warranty Accrual Fair value liabilities Fair Value Inputs, Liabilities, Quantitative Information [Table] Fair Value Inputs, Liabilities, Quantitative Information [Table] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Next Phase Solar, Inc. Next Phase Solar, Inc. [Member] Next Phase Solar, Inc. [Member] Contingent consideration Fair Value Inputs, Liabilities, Quantitative Information [Line Items] Fair Value Inputs, Liabilities, Quantitative Information [Line Items] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Revaluations Fair Value, Measurement With Unobservable Inputs Reconciliations, Recurring Basis, Liability, Adjustments Fair Value, Measurement With Unobservable Inputs Reconciliations, Recurring Basis, Liability, Adjustments FAIR VALUE MEASUREMENTS Fair Value Disclosures [Text Block] Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Schedule of Changes in Nonfinancial Liabilities Related to Warrant Obligations Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Summary of Changes in Financial Liabilities Related to Contingent Consideration Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs Fair Value Inputs, Liabilities, Quantitative Information [Table Text Block] Summary of Significant Unobservable Inputs used in the Fair Value Measurement of Liabilities Designated as Level 3 Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques [Table Text Block] 2015 (remaining 9 months) Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year 2016 Finite-Lived Intangible Assets, Amortization Expense, Year Two 2017 Finite-Lived Intangible Assets, Amortization Expense, Year Three 2018 Finite-Lived Intangible Assets, Amortization Expense, Year Four 2019 Finite-Lived Intangible Assets, Amortization Expense, Year Five Total Finite-Lived Intangible Assets, Net Number of Shares Outstanding Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Outstanding, beginning balance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Exercised (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Canceled (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period Outstanding, ending balance (in shares) Weighted- Average Exercise Price per Share Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Outstanding, beginning balance (in usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Granted (in usd per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Exercised (in usd per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Canceled (in usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price Outstanding, ending balance (in usd per share) Stock options Employee Stock Option [Member] The fair value of each option granted during the periods Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract] Weighted average grant date fair value (in usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Expected term (in years) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Expected volatility Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Annual risk-free rate of return Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Dividend yield Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Organization, Consolidation and Presentation of Financial Statements [Abstract] Basis of Presentation and Consolidation Basis of Accounting, Policy [Policy Text Block] Unaudited Interim Financial Information Condensed Financial Statements, Policy [Policy Text Block] Condensed Financial Statements, Policy [Policy Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Income Taxes Income Tax, Policy [Policy Text Block] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Level 2 Fair Value, Inputs, Level 2 [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] Foreign currency forward contracts Foreign Currency Contract, Asset, Fair Value Disclosure Liabilities: Liabilities, Fair Value Disclosure [Abstract] Foreign currency forward contracts Foreign Currency Contracts, Liability, Fair Value Disclosure Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Customer relationships Customer Relationships [Member] Patents Patents [Member] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Goodwill, gross Goodwill, Gross Goodwill Goodwill Other indefinite-lived intangibles Indefinite-Lived Intangible Assets (Excluding Goodwill) Intangibles assets with finite lives: Finite-Lived Intangible Assets, Net [Abstract] Intangibles assets with finite lives, gross Finite-Lived Intangible Assets, Gross Intangibles assets with finite lives, accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Statement of Comprehensive Income [Abstract] Net loss Other comprehensive (loss) income: Other Comprehensive Income (Loss), Net of Tax [Abstract] Foreign currency translation adjustments Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax Comprehensive loss Comprehensive Income (Loss), Net of Tax, Attributable to Parent Changes in the Company's product warranty liability Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward] Warranty obligations, beginning of period Accruals for warranties issued during period Standard Product Warranty Accrual, Warranties Issued Changes in estimates Settlements Standard Product Warranty Accrual, Payments Increase due to accretion expense Product Warranty Accrual, Accretion Expense Product Warranty Accrual, Accretion Expense Other Product Warranty Accrual, Other Product Warranty Accrual, Other Warranty obligations, end of period Less current portion Product Warranty Accrual, Current Noncurrent Product Warranty Accrual, Noncurrent STOCK-BASED COMPENSATION Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Schedule of inventory Inventory, Net [Abstract] Raw materials Inventory, Raw Materials, Gross Finished goods Inventory, Finished Goods, Gross Total inventory Inventory, Net 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] Employee stock options Restricted stock units Warrants to purchase common stock Warrant [Member] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] The potential common shares outstanding that were excluded from the computation of diluted net loss per share attributable to common stockholders Antidilutive Securities [Abstract] Antidilutive securities. Total (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Derivative [Table] Derivative [Table] Hedging Designation [Axis] Hedging Designation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Not designated as hedging instrument Not Designated as Hedging Instrument [Member] Derivative Instrument Risk [Axis] Derivative Instrument [Axis] Derivative Contract Type [Domain] Derivative Contract [Domain] Foreign exchange forward Foreign Exchange Forward [Member] Derivative [Line Items] Derivative [Line Items] Notional amount of foreign currency Derivative, Notional Amount Net gain on foreign currency Gain (Loss) on Foreign Currency Derivative Instruments Not Designated as Hedging Instruments Number of contingent payments Business Combination, Contingent Consideration, Number Of Payments Business Combination, Contingent Consideration, Number Of Payments Contingent payment, low range of undiscounted amounts Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, Low Contingent payment, high range of undiscounted amounts Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High Decrease to fair value measurement as a result of 100 basis point increase Warranty Obligations at Fair Value, Decrease in Fair Value Resulting from One Percentage Point Increase in Discount Rate Warranty Obligations at Fair Value, Decrease in Fair Value Resulting from One Percentage Point Increase in Discount Rate Increase to fair value measurement as a result of 100 basis point decrease Warranty Obligations At Fair Value, Increase In Fair Value Resulting From One Percentage Point Decrease In Discount Rate Warranty Obligations At Fair Value, Increase In Fair Value Resulting From One Percentage Point Decrease In Discount Rate Contingent consideration earnout period Business Combination, Contingent Consideration Arrangements, Determination Period Business Combination, Contingent Consideration Arrangements, Determination Period Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table] Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table] 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] Research and development Research and Development Expense [Member] Sales and marketing Selling and Marketing Expense [Member] General and administrative General and Administrative Expense [Member] Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] Allocation of Stock-based Compensation Expense Included in the Consolidated Statement of Operations [Abstract] Share-based Compensation, Allocation and Classification in Financial Statements [Abstract] Total stock-based compensation expense Restricted stock Restricted Stock [Member] Intrinsic value of options exercised during period Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value Intrinsic value of options outstanding Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Fair value of stock vested during period Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value Intrinsic value of restricted stock units outstanding Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Intrinsic Value, Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Intrinsic Value, Value Total unrecognized compensation cost Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized Weighted-average recognition period for unrecognized compensation cost Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition OVERVIEW AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block] Summary of Warranty Activities Schedule of Product Warranty Liability [Table Text Block] Useful life Finite-Lived Intangible Asset, Useful Life Amortization expense related to intangible assets Amortization of Intangible Assets Provision for income taxes Loss before income taxes INVENTORY Inventory Disclosure [Text Block] Statement of Cash Flows [Abstract] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net loss to net cash used in operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation and amortization Depreciation, Depletion and Amortization Provision for doubtful accounts Provision for Doubtful Accounts Net loss on disposal of assets Gain (Loss) on Disposition of Other Assets Non-cash interest expense Amortization of Financing Costs and Discounts Stock-based compensation Share-based Compensation Revaluation of contingent consideration liability Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability Changes in operating assets and liabilities: Increase (Decrease) in Operating Assets [Abstract] Accounts receivable Increase (Decrease) in Accounts Receivable Inventory Increase (Decrease) in Inventories Prepaid expenses and other assets Increase (Decrease) in Prepaid Expense and Other Assets Accounts payable, accrued and other liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities Warranty obligations Increase (Decrease) in Product Warranty Accrual Increase (Decrease) in Product Warranty Accrual Deferred revenues Increase (Decrease) in Deferred Revenue Net cash (used in) 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 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] Repayments of term loans Repayments of Long-term Debt Proceeds from 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 Effect of Exchange Rate on Cash and Cash Equivalents Net (decrease) increase 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 Supplemental disclosures of non-cash investing and financing activities: Supplemental Cash Flow Information [Abstract] Purchases of property and equipment included in accounts payable Capital Expenditures Incurred but Not yet Paid Commitments and Contingencies Disclosure [Abstract] COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Disclosure [Text Block] ASSETS Assets [Abstract] Current assets: Assets, Current [Abstract] Cash and cash equivalents Accounts receivable, net of allowances of $533 and $569 at March 31, 2015 and December 31, 2014, respectively Accounts Receivable, Net, Current Inventory Prepaid expenses and other assets Prepaid Expense and Other Assets, Current Total current assets Assets, Current Property and equipment, net Property, Plant and Equipment, Net Intangibles, net Intangible Assets, Net (Excluding Goodwill) Other assets Other Assets, Noncurrent Total assets Assets LIABILITIES AND STOCKHOLDERS’ EQUITY Liabilities and Equity [Abstract] Current liabilities: Liabilities, Current [Abstract] Accounts payable Accounts Payable, Current Accrued liabilities Accrued Liabilities, Current Deferred revenues Deferred Revenue, Current Warranty obligations, current portion (includes $1,534 and $1,125 measured at fair value at March 31, 2015 and December 31, 2014, respectively) Total current liabilities Liabilities, Current Long-term liabilities: Liabilities, Noncurrent [Abstract] Deferred revenues, noncurrent Deferred Revenue, Noncurrent Warranty obligations, noncurrent (includes $3,249 and $2,437 measured at fair value at March 31, 2015 and December 31, 2014, respectively) Other liabilities Other Liabilities, Noncurrent Total liabilities Liabilities Commitments and contingencies Commitments and Contingencies Stockholders’ equity: Stockholders' Equity Attributable to Parent [Abstract] Preferred stock, $0.00001 par value, 10,000 shares authorized; none issued and outstanding Preferred Stock, Value, Issued Common stock, $0.00001 par value, 100,000 shares authorized; 44,117 and 43,756 shares issued and outstanding at March 31, 2015 and December 31, 2014, respectively Common Stock, Value, Issued Additional paid-in capital Additional Paid in Capital Accumulated deficit Retained Earnings (Accumulated Deficit) Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Total stockholders’ equity Stockholders' Equity Attributable to Parent Total liabilities and stockholders’ equity Liabilities and Equity