Statement of Financial Position [Abstract] ASSETS ASSETS [Abstract] Current assets: Current assets: [Abstract] Cash and cash equivalents Short-term investments, net Accounts receivable Inventories Prepaid expenses and other current assets Total current assets Property and equipment, net Total assets LIABILITIES AND STOCKHOLDERS’ EQUITY LIABILITIES AND STOCKHOLDERS’ EQUITY [Abstract] Current liabilities: Current liabilities: [Abstract] Accounts payable Accrued liabilities Total current liabilities Commitments and contingencies (Note 9) Stockholders’ equity: Stockholders’ equity: [Abstract] Aggregate par or stated value of undesignated stock. This item includes the treasury stock repurchased by the entity. Undesignated stock, $0.01 par value, 10,000,000 shares authorized, no shares issued and outstanding as of June 28, 2014 and December 31, 2013, respectively Common stock, $0.01 par value, 90,000,000 shares authorized as of June 28, 2014 and 40,000,000 shares authorized as of December 31, 2013, 33,014,079 and 26,979,079 issued and outstanding as of June 28, 2014 and December 31, 2013, respectively Additional paid-in capital Accumulated deficit Total stockholders’ equity Total liabilities and stockholders’ equity Face amount or stated value of undesignated stock per share; generally not indicative of the fair market value per share. The maximum number of undesignated shares permitted to be issued by the entity's charter and bylaws. Total number of undesignated stock issued to shareholders (includes related undesignated stock that were issued, repurchased and remain in the treasury). May be all or portion of the number of undesignated stock authorized. Total number of shares of undesignated stock held by shareholders. May be all or portion of the number of undesignated shares authorized. These shares represent the ownership interest of the undesignated shareholders. Shares outstanding equals shares issued minus shares held in treasury and other adjustments, if any. Undesignated stock, par value (in Dollars per share) Undesignated stock, shares authorized Undesignated stock, shares issued Undesignated stock, shares outstanding Common stock, par value (in Dollars per share) Common stock, shares authorized Common stock, shares issued Common stock, shares outstanding Income Statement [Abstract] Net sales Cost of sales Gross profit Operating expenses: Operating expenses: [Abstract] Research and development Selling, general and administrative Operating loss Interest income Net loss Basic and diluted net loss per share (in Dollars per share) Weighted average shares outstanding — basic and diluted (in Shares) Comprehensive loss Statement of Cash Flows [Abstract] Equity Component [Domain] Cash flows from operating activities: Cash flows from operating activities: [Abstract] Net loss Adjustments to reconcile net loss to net cash used in operating activities: Adjustments to reconcile net loss to net cash used in operating activities: [Abstract] Depreciation expense Stock-based compensation Amortization of premium on short-term investments Other Changes in operating assets and liabilities: Changes in operating assets and liabilities: [Abstract] Accounts receivable Inventories Prepaid expenses and other current assets Accounts payable Accrued liabilities Net cash used in operating activities Cash flows from investing activities: Cash flows from investing activities: [Abstract] Proceeds from sales and maturities of short-term investments Purchases of short-term investments Purchase of property and equipment Net cash provided by (used in) investing activities Cash flows from financing activities: Cash flows from financing activities: [Abstract] Proceeds from sale of common stock in a public offering, net of issuance costs Net cash provided by financing activities Net increase (decrease) in cash and cash equivalents Cash and cash equivalents at beginning of period Cash and cash equivalents at end of period Issuance costs Disclosure Text Block [Abstract] Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Interim Financial Statements [Abstract] Interim Financial Statements [Abstract] This element represents the disclosure related to the interim unaudited financial statements. Interim Financial Statements [Text Block] Use Of Estimates Disclosure [Abstract] Use Of Estimates Disclosure [Abstract] The entire disclosure relating to the use of accounting estimates in the preparation of financial statements in conformity with generally accepted accounting principles captured as a single block of text. Use Of Estimates Disclosure [Text Block] Inventory Disclosure [Abstract] Inventory Disclosure [Text Block] Earnings Per Share [Abstract] Earnings Per Share [Text Block] Disclosure Text Block Supplement [Abstract] Cash, Cash Equivalents, and Short-term Investments [Text Block] Fair Value Disclosures [Abstract] Fair Value Disclosures [Text Block] Property, Plant and Equipment [Abstract] Property, Plant and Equipment Disclosure [Text Block] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Text Block] Payables and Accruals [Abstract] Accounts Payable and Accrued Liabilities Disclosure [Text Block] Stockholders' Equity Note [Abstract] Stockholders' Equity Note Disclosure [Text Block] Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Compensation and Retirement Disclosure [Abstract] Pension and Other Postretirement Benefits Disclosure [Text Block] Schedule of Inventory, Current [Table Text Block] Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Cash, Cash Equivalents and Investments [Table Text Block] Fair Value, Assets Measured on Recurring Basis [Table Text Block] Property, Plant and Equipment [Table Text Block] Schedule of Accrued Liabilities [Table Text Block] Schedule of Stock Options Roll Forward [Table Text Block] Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block] Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block] Inventories Inventories [Abstract] Raw materials Work in process Finished goods Total Calculation of Net Loss per Common Share Calculation of Net Loss per Common Share [Abstract] Net loss Weighted average shares outstanding—basic and diluted Basic and diluted net loss per share Antidilutive Securities Antidilutive Securities [Abstract] Antidilutive Securities, Name [Domain] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Shares are not included in diluted net loss per share calculations Cash, Cash Equivalents and Short-Term Investments Cash, Cash Equivalents and Short-Term Investments [Abstract] InvestmentType [Domain] CashAndCashEquivalents [Domain] Note 6 - Cash, Cash Equivalents and Short-Term Investments (Details) - Cash, Cash Equivalents and Short-Term Investments [Table] Note 6 - Cash, Cash Equivalents and Short-Term Investments (Details) - Cash, Cash Equivalents and Short-Term Investments [Line Items] Cash and cash equivalents Cash and cash equivalents [Abstract] Short-term investments Short-term investments [Abstract] Short-term investments Summary of Financial Assets Measured at Fair Value on a Recurring Basis Summary of Financial Assets Measured at Fair Value on a Recurring Basis [Abstract] Fair Value Hierarchy [Domain] Fair Value, Measurement Frequency [Domain] Note 7 - Fair Value of Financial Instruments (Details) - Summary of Financial Assets Measured at Fair Value on a Recurring Basis [Table] Note 7 - Fair Value of Financial Instruments (Details) - Summary of Financial Assets Measured at Fair Value on a Recurring Basis [Line Items] Financial assets at fair value Property and Equipment Property and Equipment [Abstract] Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment [Table] Property, Plant and Equipment [Line Items] Gross amount Accumulated depreciation Accrued Liabilities Accrued Liabilities [Abstract] Carrying value as of the balance sheet of accrued clinical study related expense due within one year or within the normal operating cycle if longer. Clinical study related expense Professional services Payroll and related expenses Other Total accrued liabilities Summary of Option Activity Summary of Option Activity [Abstract] Options outstanding Options outstanding Granted Granted Cancelled Cancelled Summary of Restricted Stock Award Activity Summary of Restricted Stock Award Activity [Abstract] Equity Award [Domain] Note 12 - Stock-Based Compensation (Details) - Summary of Restricted Stock Award Activity [Table] Note 12 - Stock-Based Compensation (Details) - Summary of Restricted Stock Award Activity [Line Items] Number of Shares Weighted Average Fair Value Vested Vested Stock-based Compensation Expense Stock-based Compensation Expense [Abstract] Income Statement Location [Domain] Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table] Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] Total stock-based compensation Depreciation, Depletion and Amortization Contingent Consideration Type [Domain] Note 9 - Commitments and Contingencies (Details) [Table] Note 9 - Commitments and Contingencies (Details) [Line Items] Royalty Payment Rate of Royalty Percentage on Sales Royalty Obligation Period after Fiscal Quarter in which Royalty Payments are due Royalty Obligation Termination Condition Aggregate Royalty Paid Royalty Expense The percentage of sales that the entity pays related to a royalty agreement. Represents the period after the end of each fiscal quarter in which royalty obligations are payable. Represents the aggregate amount of royalties paid after which royalty payment obligation will be terminated. Class of Warrant or Right [Domain] Note 11 - Stockholders' Equity (Details) [Table] Note 11 - Stockholders' Equity (Details) [Line Items] Common Stock, Shares Authorized Stock Issued During Period, Shares, New Issues Share Price (in Dollars per share) Proceeds from Issuance of Common Stock (in Dollars) Net Proceeds from Issuance of Common Stock (in Dollars) Class of Warrant or Right, Number of Securities Called by Warrants or Rights Class of Warrant or Right, Term of Warrants or Rights Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per share) Class of Warrant or Right, Exercise Price, Percentage of Purchase Price of Shares Sold Period after Public Offering after which Warrants Become Exercisable The net cash inflow after deducting the underwriting discounts and commissions and other expenses from the additional capital contribution to the entity. Term of the warrants, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Represents the exercise price expressed as a percentage of the purchase price of shares sold in a public offering. Represents the period after the effective date of the public offering after which warrants become exercisable. Range [Domain] Relationship to Entity [Domain] Plan Name [Domain] Note 12 - Stock-Based Compensation (Details) [Table] Note 12 - Stock-Based Compensation (Details) [Line Items] Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Share based Compensation Arrangement by Share based Payment Award, Award Vesting Percentage Per Year Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures (in Shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number (in Shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number (in Shares) Allocated Share-based Compensation Expense (in Dollars) Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in Shares) Represents the percentage of stock awards vesting over the service period per year. Defined Contribution Plan, Cost Recognized Certificates of Deposit [Member] Class of Warrant or Right [Axis] Antidilutive Securities [Axis] Fair Value, Inputs, Level 2 [Member] Property, Plant and Equipment, Type [Axis] Commercial Paper [Member] Contingent Consideration by Type [Axis] Fair Value, Measurements, Recurring [Member] Cash and Cash Equivalents [Axis] Fair Value, Inputs, Level 1 [Member] Equity Option [Member] Range [Axis] Scenario, Unspecified [Domain] Measurement Frequency [Axis] Restricted Stock [Member] Investment Type [Axis] Maximum [Member] Award Type [Axis] Corporate Debt Securities [Member] Leasehold Improvements [Member] Fair Value, Inputs, Level 3 [Member] Furniture and Fixtures [Member] Cash [Member] Machinery and Equipment [Member] Minimum [Member] Plan Name [Axis] Employee Stock Option [Member] Income Statement Location [Axis] Money Market Funds [Member] Equity Components [Axis] Scenario [Axis] Computer Equipment [Member] Fair Value, Hierarchy [Axis] Common Stock [Member] Selling, General and Administrative Expenses [Member] Warrant [Member] Title of Individual [Axis] Research and Development Expense [Member] Assignment And License Agreement [Member] Assignment and License Agreement [Member] Represents the Assignment and License Agreement pursuant to which the core intellectual property was acquired. Employee [Member] Employee [Member] Represents the employees of the entity. Issued To Underwriters [Member] Issued to Underwriters [Member] Represents equity instruments issued to underwriters. Non Employee [Member] Non Employee [Member] Represents individuals other than employees of the entity. Non Employee Stock Option [Member] Non-employee Stock Option [Member] Option Purchase Agreements Shares Issuable To Underwriters [Member] Option Purchase Agreements Shares Issuable to Underwriters [Member] Represents the shares issuable to underwriters under option purchase agreements. Sale Of Common Stock In Public Offering 1 [Member] Sale of Common Stock in Public Offering 1 [Member] Sale Of Common Stock In Public Offering 2 [Member] Sale of Common Stock in Public Offering 2 [Member] The 2007 Long Term Incentive Plan [Member] The 2007 Long-Term Incentive Plan [Member] The 2013 Equity Incentive Plan [Member] The 2013 Equity Incentive Plan [Member] Document and Entity Information [Abstract] RoyaltyObligationTerminationConditionAggregateRoyaltyPaid ClassOfWarrantOrRightTermOfWarrantsOrRights NetProceedsFromIssuanceOfCommonStock RoyaltyObligationPeriodAfterFiscalQuarterInWhichRoyaltyPaymentsAreDue UseOfEstimatesDisclosureTextBlock RoyaltyPaymentRateOfRoyaltyPercentageOnSales PeriodAfterPublicOfferingAfterWhichWarrantsBecomeExercisable ClassOfWarrantOrRightExercisePricePercentageOfPurchasePriceOfSharesSold InterimFinancialStatementsTextBlock ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPercentagePerYear Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Cash and Cash Equivalents, Period Increase (Decrease) Assets, Current Cash, Cash Equivalents and Investments [Table Text Block] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Payments to Acquire Property, Plant, and Equipment Liabilities, Current Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Fair Value, Assets Measured on Recurring Basis [Table Text Block] Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block] Cash, Cash Equivalents, and Short-term Investments [Text Block] Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period Royalty Expense Cost of Goods Sold Commitments and Contingencies Disclosure [Text Block] Entity Common Stock, Shares Outstanding Schedule of Accrued Liabilities [Table Text Block] Assets Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Accounts Payable and Accrued Liabilities Disclosure [Text Block] Entity Well-known Seasoned Issuer Entity Registrant Name Entity Voluntary Filers Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block] Class of Warrant or Right, Number of Securities Called by Warrants or Rights Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Entity Filer Category Operating Income (Loss) Entity Public Float Schedule of Stock Options Roll Forward [Table Text Block] Stock Issued During Period, Shares, New Issues Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Gross Profit Document Fiscal Period Focus Current Fiscal Year End Date Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Fair Value Disclosures [Text Block] Property, Plant and Equipment Disclosure [Text Block] Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures Net Cash Provided by (Used in) Operating Activities, Continuing Operations Class of Warrant or Right, Exercise Price of Warrants or Rights Increase (Decrease) in Inventories Property, Plant and Equipment [Table Text Block] Increase (Decrease) in Accrued Liabilities Amendment Flag Net Cash Provided by (Used in) Investing Activities, Continuing Operations Increase (Decrease) in Accounts Receivable Inventory Disclosure [Text Block] Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Document Period End Date Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Increase (Decrease) in Accounts Payable Payments to Acquire Short-term Investments Increase (Decrease) in Prepaid Expense and Other Assets Entity Central Index Key Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Earnings Per Share [Text Block] Entity Current Reporting Status Stockholders' Equity Note Disclosure [Text Block] Document Fiscal Year Focus Liabilities and Equity Defined Contribution Plan, Cost Recognized Share Price Other Accrued Liabilities, Current Pension and Other Postretirement Benefits Disclosure [Text Block] Amendment Description Document Type Schedule of Inventory, Current [Table Text Block] Stockholders' Equity Attributable to Parent Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Statement [Table] Statement [Line Items]