Accounting Policies [Abstract] Accounting Policies [Abstract] Accounts Payable and Accrued Liabilities, Current [Abstract] Accounts Payable and Accrued Liabilities, Current [Abstract] Accounts Payable, Current Accounts payable Accounts Receivable [Member] Accounts Receivable, net [Member] Accounts Receivable, Net, Current Accounts receivable, net Accrued deferred offering costs current. Accrued Deferred Offering Costs Current Accrued deferred offering costs Accrued Liabilities, Current Accrued liabilities Total accrued liabilities Accrued manufacturing expenses current. Accrued Manufacturing Expenses Current Accrued manufacturing-related costs Accrued Salaries, Current Accrued payroll-related expenses Accrued Sales Commission, Current Accrued sales commissions payable to sales representatives Additional Paid in Capital, Common Stock Additional paid-in capital Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net loss to net cash used in operating activities: Allocated Share-based Compensation Expense Stock-based compensation expense Amended silicon valley bank credit facility. Amended Silicon Valley Bank Credit Facility [Member] Amended SVB Credit Facility [Member] Amendment Flag Amendment Flag Amortization of Debt Issuance Costs and Discounts Non-cash interest expense Amortization of Intangible Assets Amortization of intangible assets Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Potentially dilutive securities excluded from diluted net loss per common share Antidilutive Securities [Axis] Antidilutive Securities [Axis] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Area of operating lease. Area Of Operating Lease Area of operating lease Ares Venture Finance Credit Facility [Member] Ares Venture Finance Credit Facility [Member] 2015 Credit Facility [Member] Assets Total assets Assets [Abstract] Assets Assets, Current Total current assets Assets, Current [Abstract] Current assets: Assets, Fair Value Disclosure, Recurring Total assets measured at fair value Award Type [Axis] Award Type [Axis] Basis of Accounting, Policy [Policy Text Block] Basis of Presentation Basis of Presentation and Significant Accounting Policies [Text Block] Summary of Significant Accounting Policies Capital Lease Obligations Incurred Purchase of property and equipment under capital lease obligations Capital Leases, Balance Sheet, Assets by Major Class, Net Property and equipment under capital leases Capital Leases, Future Minimum Payments Due Capital lease obligations future minimum lease payments Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation Capital lease obligations accumulated depreciation and amortization Capital Units, Authorized Shares authorized Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents at end of period Cash and cash equivalents at beginning of period Cash and cash equivalents Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Axis] Cash and Cash Equivalents, Fair Value Disclosure Money market funds Cash and Cash Equivalents, Period Increase (Decrease) Net decrease in cash and cash equivalents Class of Stock [Domain] Class of Stock [Domain] Class of Stock [Line Items] Class of Stock [Line Items] Class of Warrant or Right [Axis] Class of Warrant or Right [Axis] Class of Warrant or Right [Domain] Class of Warrant or Right [Domain] Class of warrant or right exercisable expiration date. Class Of Warrant Or Right Exercisable Expiration Date Warrant exercise expiration date Class of warrant or right exercisable expiration period. Class Of Warrant Or Right Exercisable Expiration Period Warrant exercise expiration period Class of Warrant or Right, Exercise Price of Warrants or Rights Warrant exercise price Class of Warrant or Right [Line Items] Class of Warrant or Right [Line Items] Class of Warrant or Right, Number of Securities Called by Warrants or Rights Warrants issued Class of Warrant or Right [Table] Class of Warrant or Right [Table] Commitments and Contingencies Commitments and contingencies Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Text Block] Commitments and Contingencies Common Stock, Capital Shares Reserved for Future Issuance Reserved shares of common stock for future issuance Common Stock, Dividends, Per Share, Declared Dividends on common stock Common Stock [Member] Common Stock [Member] Common Stock, Par or Stated Value Per Share Common stock, par value Common Stock, Shares Authorized Common stock, shares authorized Common Stock, Shares, Issued Common stock, shares issued Common Stock, Shares, Outstanding Common stock, shares outstanding Common Stock, Value, Issued Common stock, $0.0001 par value per share; 204,000,000 and 175,000,000 shares authorized as of September 30, 2016 and December 31, 2015, respectively; 3,025,920 and 3,015,281 shares issued and outstanding as of September 30, 2016 and December 31, 2015, respectively Compensation expense related to vesting of common stock. Compensation Expense Related To Vesting of Common Stock Compensation expense related to vesting of common stock Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Concentration Risk Type [Axis] Concentration Risk Type [Axis] Concentration Risk, Credit Risk, Policy [Policy Text Block] Concentration of Credit Risk Concentration Risk [Line Items] Concentration Risk [Line Items] Concentration Risk, Percentage Concentration Risk, Percentage Concentration Risk [Table] Concentration Risk [Table] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Convertible Debt Debt instrument, carrying value Cost of Goods Sold Cost of sales Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Current Fiscal Year End Date Current Fiscal Year End Date Customer A. Customer -A- [Member] Customer A [Member] Customer B. Customer B [Member] Customer B [Member] Customer C. Customer C [Member] Customer C [Member] Customer Concentration Risk [Member] Customer Concentration Risk [Member] Customer D. Customer D [Member] Customer D [Member] Debt and Capital Leases Disclosures [Text Block] Debt and Related Warrants Debt Disclosure [Abstract] Debt Disclosure [Abstract] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Basis Spread on Variable Rate Interest rate, basis spread percentage Long-term Debt, Gross Debt, including end of term fee, Total Total principal repayments Debt instrument convertible equity issuance trigger. Debt Instrument Convertible Equity Issuance Trigger Debt instrument, convertible, equity issuance trigger Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger Debt instrument, threshold percentage Debt Instrument, Covenant Compliance Debt instrument, covenant compliance Debt Instrument, Covenant Description Debt instrument, covenant description Debt Instrument, Face Amount Debt instrument, aggregate amount Debt Instrument, Fee Amount Term loan end-of-term fee Debt Instrument, Interest Rate, Stated Percentage Debt instrument, interest rate Interest rate Debt Instrument [Line Items] Debt Instrument [Line Items] Debt Instrument, Maturity Date Debt instrument, maturity date Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Debt Instrument, Term Agreement term Debt Instrument, Unamortized Discount Debt discount Amount of unamortized debt discount (premium) and debt issuance costs current. Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Current Less: discount attributable to warrants, end of term fee and debt issuance cost, Current Portion Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Less: discount attributable to warrants, end of term fee and debt issuance cost, Total Amount of unamortized debt discount (premium) and debt issuance costs noncurrent. Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Noncurrent Less: discount attributable to warrants, end of term fee and debt issuance cost, Long-term debt Debt Instrument, Unamortized Discount (Premium), Net Debt instrument, unamortized discount Deferred Costs, Current Deferred cost of sales Disclosure of accounting policy for deferred offering costs (including costs related to an Initial Public Offering). Deferred Initial Public Offering Costs [Policy Text Block] Deferred Offering Costs Deferred licensing revenue current portion. Deferred Licensing Revenue Current Deferred licensing revenue Deferred non-cash offering costs incurred in accounts payable and accrued liabilities. Deferred Noncash Offering Costs Incurred In Accounts Payable And Accrued Liabilities Deferred offering costs recorded in accounts payable and accrued liabilities Deferred Offering Costs Deferred offering cost Deferred offering costs Deferred Rent Credit, Current Deferred rent Deferred Revenue and Credits, Current Deferred income on shipments to distributors Deferred Revenue, Current Deferred revenue Deferred Revenue, Noncurrent Deferred revenue Depreciation, Depletion and Amortization, Nonproduction Depreciation and amortization Derivative Contract [Domain] Derivative Contract [Domain] Derivative, Gain (Loss) on Derivative, Net Change in fair value of derivative liability Derivative Instrument [Axis] Derivative Instrument [Axis] Derivative Liability Derivative liability Derivative Liability, Current Derivative liability Derivative [Member] Derivative Liability [Member] Derivatives, Policy [Policy Text Block] Derivative Liability Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Stock-Based Compensation Document and entity information. Document And Entity Information [Abstract] Document And Entity Information [Abstract] Document Fiscal Period Focus Document Fiscal Period Focus Document Fiscal Year Focus Document Fiscal Year Focus Document Period End Date Document Period End Date Document Type Document Type Due from Related Parties, Current Amounts due from related parties Due from related party Due to Related Parties, Current Amounts due to related parties Due to Related Parties Due to related party Earnings Per Share [Abstract] Earnings Per Share [Abstract] Earnings Per Share, Basic and Diluted Net loss per common share, basic and diluted Earnings Per Share, Policy [Policy Text Block] Net Loss per Common Share Earnings Per Share [Text Block] Net Loss Per Common Share Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Unrecognized compensation expense, weighted-average period expected to be recognized Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options Total unrecognized compensation expense related to unvested options Employees. Employees [Member] Employees [Member] Employee Stock Option [Member] Options to Purchase Common Stock [Member] Entity Central Index Key Entity Central Index Key Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Entity Filer Category Entity Filer Category Entity Incorporation, Date of Incorporation Date of entity incorporation Entity Registrant Name Entity Registrant Name Equity [Abstract] Equity [Abstract] Equity Component [Domain] Equity Component [Domain] Estimated fair value of common stock per share. Estimated Fair Value Of Common Stock Per Share Estimated fair value of common stock per share Fair Value Adjustment of Warrants Change in fair value of redeemable convertible preferred stock warrant liability 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] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Table] Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Table] Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Table Text Block] Schedule of Assumptions Used in Valuation of Redeemable Convertible Preferred Stock Warrants Fair Value Assumptions, Exercise Price Exercise price Fair Value Assumptions, Expected Dividend Rate Dividend yield Fair Value Assumptions, Expected Term Estimated life Expected term (in years) Fair Value Assumptions, Expected Volatility Rate Expected volatility Volatility rate Fair Value Assumptions, Risk Free Interest Rate Risk-free interest rate Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Fair value inputs, future outcomes, minimum equity financing proceeds. Fair Value Inputs, Future Outcomes, Minimum Equity Financing Proceeds Fair value inputs, future outcomes, minimum equity financing proceeds Fair Value, Inputs, Level 1 [Member] Level 1 [Member] Fair Value, Inputs, Level 3 [Member] Level 3 [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 [Table] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Schedule of Change in Fair Value of Liability Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings Change in fair value recorded in other income (expense), net Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Issuances Issuance of redeemable convertible preferred stock warrants / derivative liability Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value Balance at September 30, 2016 Balance at December 31, 2015 Fair Value of Financial Instruments, Policy [Policy Text Block] Fair Value of Financial Instruments Financial Instrument [Axis] Financial Instrument [Axis] Finite-Lived Intangible Assets, Accumulated Amortization Less: accumulated amortization Finite-Lived Intangible Assets, Gross Acquired intangible assets Future stock option grants. Future Stock Option Grants [Member] Shares Available for Future Option Grants [Member] Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property Loss on disposal of property and equipment General and Administrative Expense General and administrative General and Administrative Expense [Member] General and Administrative [Member] Global Foundries. Global Foundries [Member] Global Foundries, Inc. [Member] Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Gross Profit Gross profit Income Statement [Abstract] Income Statement [Abstract] Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Increase (Decrease) in Accounts Payable Accounts payable Increase (Decrease) in Accounts Receivable Accounts receivable Increase (Decrease) in Accrued Liabilities Accrued liabilities Increase (Decrease) in Deferred Revenue Deferred revenue Increase (Decrease) in Deferred Revenue and Customer Advances and Deposits Deferred income on shipments to distributors Increase (Decrease) in Due from Related Parties, Current Amounts due from related parties Increase (Decrease) in Due to Related Parties, Current Amounts due to related parties Increase (Decrease) in Inventories Inventory Increase (Decrease) in Operating Capital [Abstract] Changes in operating assets and liabilities: Increase (Decrease) in Other Operating Assets Other assets Increase (Decrease) in Prepaid Expense and Other Assets Prepaid expenses and other current assets Intangible Assets, Gross (Excluding Goodwill) Acquired technology Intangible Assets, Net (Excluding Goodwill) Intangible assets, net Total intangible assets, net Interest Expense Interest expense Interest Paid Interest paid Inventory, Finished Goods, Net of Reserves Finished goods Inventory, Net Inventory Total inventory Inventory, Net, Items Net of Reserve Alternative [Abstract] Inventory, Net, Items Net of Reserve Alternative [Abstract] Inventory, Raw Materials, Net of Reserves Raw materials Inventory, Work in Process, Net of Reserves Work-in-process IPO [Member] IPO [Member] Joint development agreement. Joint Development Agreement [Member] Joint Development Agreement [Member] Liabilities Total liabilities Liabilities and Equity Total liabilities, redeemable convertible preferred stock and stockholders' deficit Liabilities and Equity [Abstract] Liabilities, Redeemable Convertible Preferred Stock and Stockholders' Deficit Liabilities, Current Total current liabilities Liabilities, Current [Abstract] Current liabilities: Liabilities, Fair Value Disclosure, Recurring Total liabilities measured at fair value Licenses Revenue Licensing and royalty revenue Line of Credit Facility [Abstract] Line of Credit Facility [Abstract] Lender Name [Axis] Lender Name [Axis] Line of Credit Facility, Expiration Period Line of credit facility expiration period Line of Credit Facility, Lender [Domain] Line of Credit Facility, Lender [Domain] Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Line of Credit Facility, Maximum Borrowing Capacity Loan agreement amount Line of Credit Facility [Table] Line of Credit Facility [Table] London Interbank Offered Rate (LIBOR) [Member] London Interbank Offered Rate (LIBOR) [Member] Long-term Debt Net carrying value of debt, Total Long-term Debt, Current Maturities Current portion of long-term debt Net carrying value of debt, Current Portion Long-term debt current gross. Long Term Debt Current Gross Debt, including end of term fee, Current Portion Long-term Debt, Maturities, Repayments of Principal in Year Four 2019 Long-term Debt, Maturities, Repayments of Principal in Year Three 2018 Long-term Debt, Maturities, Repayments of Principal in Year Two 2017 Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year 2016 (remaining three months) Long-term Debt, Excluding Current Maturities Long-term debt, net of current portion Net carrying value of debt, Long-term debt Long-term debt noncurrent gross. Long Term Debt Noncurrent Gross Debt, including end of term fee, Long-term debt Customer [Axis] Customer [Axis] Maximum [Member] Maximum [Member] Minimum [Member] Minimum [Member] Money Market Funds [Member] Money Market Funds [Member] Customer [Domain] Customer [Domain] Net Cash Provided by (Used in) Financing Activities, Continuing Operations Net cash provided by financing activities Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract] Cash flows from financing activities Net Cash Provided by (Used in) Investing Activities, Continuing Operations Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] Cash flows from investing activities Net Cash Provided by (Used in) Operating Activities, Continuing Operations Net cash used in operating activities Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] Cash flows from operating activities Net Income (Loss) Attributable to Parent Net loss Net loss and comprehensive loss Net Income (Loss) Attributable to Parent [Abstract] Numerator: New Accounting Pronouncements, Policy [Policy Text Block] Recent Accounting Pronouncements Noncash Investing and Financing Items [Abstract] Non-cash investing and financing activities: Non-cash issuance of warrants in connection with debt. Noncash Issuance Of Warrants In Connection With Debt Issuance of warrants with debt Non-employees. Non Employees [Member] Non-Employee [Member] Notes Payable, Related Parties, Current Convertible promissory notes payable-related party Number of interest and principal payments. Number Of Interest And Principal Payments Number of interest and principal Payments Number of interest only installments. Number Of Interest Only Installments Number of term loan installments Operating Expenses Total operating expenses Operating Expenses [Abstract] Operating expenses: Operating Income (Loss) Loss from operations Operating Leases, Future Minimum Payments Due Aggregate amount of payments due under the amended lease Operating leases term of expiration. Operating Leases Term Of Expiration Operating leases term of expiration Options issued and outstanding. Options Issued and Outstanding [Member] Options Issued and Outstanding [Member] Organization and nature of business. Organization And Nature Of Business [Line Items] Organization And Nature Of Business [Line Items] Organization and nature of business. Organization And Nature Of Business [Table] Organization And Nature Of Business [Table] Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block] Organization and Nature of Business Other Accrued Liabilities, Current Other Other Assets, Noncurrent Other assets Other Nonoperating Income (Expense) Other income (expense), net Payments for Rent Rent paid Payments of Debt Issuance Costs Payments of debt issuance costs Costs consisting of legal, accounting, printer and other direct fees and costs relating to the IPO. Payments Of Financing Costs IPO Payments of deferred offering costs Payments to Acquire Property, Plant, and Equipment Purchases of property and equipment Plan Name [Axis] Plan Name [Axis] Plan Name [Domain] Plan Name [Domain] Prepaid Expense and Other Assets, Current Prepaid expenses and other current assets Prime Rate [Member] Prime Rate [Member] Private Placement [Member] Private Placement [Member] Proceeds from Issuance Initial Public Offering Net proceeds from initial public offering Proceeds from Issuance of Debt Proceeds from debt Proceeds from Issuance of Private Placement Net proceeds from issuance of common stock in private placement Proceeds from Long-term Lines of Credit Proceeds from revolving loan Proceeds from Related Party Debt Proceeds from convertible promissory notes-related party Proceeds from Stock Options Exercised Proceeds from exercise of stock options Property, Plant and Equipment, Net Property and equipment, net Range [Axis] Range [Axis] Range [Domain] Range [Domain] Redeemable Convertible Preferred Stock [Member] Redeemable Convertible Preferred Stock [Member] Redeemable convertible preferred stock warrant. Redeemable Convertible Preferred Stock Warrant [Member] Redeemable Convertible Preferred Stock Warrants [Member] Related Party [Domain] Related Party [Domain] Related Party Transaction, Expenses from Transactions with Related Party Processing cost Related Party Transaction [Line Items] Related Party Transaction [Line Items] Related Party Transactions [Abstract] Related Party Transactions [Abstract] Related Party [Axis] Related Party [Axis] Related Party Transactions Disclosure [Text Block] Related Party Transactions Repayments of Debt Payments on debt Repayments of Long-term Capital Lease Obligations Payments on capital lease obligation Repayments of Related Party Debt Repayment of payables Research and Development Expense Research and development Research and development expense Research and Development Expense [Member] Research and Development [Member] Cash and Cash Equivalents [Domain] Cash and Cash Equivalents [Domain] Restricted Stock [Member] Common Stock Subject to Repurchase [Member] Retained Earnings (Accumulated Deficit) Accumulated deficit Revenue from Related Parties Related party sales Revenue Recognition, Policy [Policy Text Block] Revenue Recognition Revolving Credit Facility [Member] Revolving Loan [Member] Risks and Uncertainties [Abstract] Risks and Uncertainties [Abstract] Sale of Stock [Domain] Sale of Stock [Domain] Sales Revenue, Goods, Net Product sales (including related party sales of $662 and $902 for the three months ended September 30, 2016, respectively, and $1,396 and $2,739 for the nine months ended September 30, 2016 and 2015, respectively) Revenue, Net Total revenue Sales Revenue, Net [Member] Revenue [Member] Schedule of Accrued Liabilities [Table Text Block] Schedule of Accrued Liabilities Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Schedule of Potentially Dilutive Securities Excluded from Diluted Net Loss Per Common Share Schedule of Debt [Table Text Block] Summary of 2015 Credit Facility Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Computation of Basic and Diluted Net Loss Per Share 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 [Table Text Block] Summary of Stock-Based Compensation Expense Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Schedule of Fair Value of Financial Assets and Liabilities Measured on Recurring Basis Schedule of Finite-Lived Intangible Assets [Table Text Block] Schedule of Intangible Assets Schedule of Inventory, Current [Table Text Block] Schedule of Inventory Schedule of Maturities of Long-term Debt [Table Text Block] Summary of Principal Repayments of 2015 Credit Facility Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] Summary of Stock Option Activity Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Schedule of Fair Value of Employee Stock Options Schedule of Stock by Class [Table] Schedule of Stock by Class [Table] Schedule of Stock by Class [Table Text Block] Summary of Common Stock Reserved for Future Issuance Schedules of Concentration of Risk, by Risk Factor [Table Text Block] Schedule of Revenue and Accounts Receivable for Each Significant Customer Selling and Marketing Expense Sales and marketing Selling and Marketing Expense [Member] Sales and Marketing [Member] Series A redeemable convertible preferred stock. Series A- Redeemable Convertible Preferred Stock [Member] Series A Redeemable Convertible Preferred Stock [Member] Series B redeemable convertible preferred stock. Series B Redeemable Convertible Preferred Stock [Member] Series B Redeemable Convertible Preferred Stock [Member] Share-based Compensation Stock-based compensation Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Number of shares of common stock, unvested Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Number of shares of common stock, vested Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract] Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract] Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Dividend yield Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Expected term (in years) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Maximum Expected volatility, Maximum Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Minimum Expected volatility, Minimum Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Maximum Risk-free interest rate, Maximum Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Minimum Risk-free interest rate, Minimum Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized Options Available for Grant, Options authorized Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Maximum number of common stock shares may be issued under the plan Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Options Available for Grant, Outstanding, Ending balance Options Available for Grant, Outstanding, Beginning balance Share-based compensation arrangement by share-based payment award, number of shares available for grant cancelled or forfeited in period. Share based compensation arrangement by share based payment award number of shares available for grant cancelled or forfeited in period Options Available for Grant, Options cancelled/forfeited Share based compensation arrangement by share based payment award number of shares available for grant exercised in period. Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant Exercised In Period Options Available for Grant, Options exercised Share based compensation arrangement by share based payment award number of shares available for grant granted in period. Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant Granted In Period Options Available for Grant, Options granted Share based compensation arrangement by share based payment award options authorized in period. Share Based Compensation Arrangement By Share Based Payment Award Options Authorized In Period Number of Options, Options authorized Share based compensation arrangement by share based payment award options cancelled or forfeited in period intrinsic value. Share based compensation arrangement by share based payment award options cancelled or forfeited in period intrinsic value. Aggregate Intrinsic Value, Options cancelled/forfeited Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Aggregate Intrinsic Value, Options exercisable Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Number of Options, exercisable Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Weighted - Average Exercise Price Per Share, Options exercisable Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Weighted - Average Remaining Contractual Life, Options exercisable Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value Aggregate Intrinsic Value, Options exercised Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period Number of Options, Options cancelled/forfeited Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Number of Options, Options granted Number of stock options granted Share based compensation arrangement by share based payment award options grants in period intrinsic value. Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Intrinsic Value Aggregate Intrinsic Value, Options granted Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Weighted-average grant date fair value of employee options granted Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Aggregate Intrinsic Value, Options outstanding Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Number of Options, Outstanding, Ending balance Number of Options, Outstanding, Beginning balance Non-employee stock-based compensation, number of options outstanding Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Weighted - Average Exercise Price Per Share, Options outstanding, Ending balance Weighted - Average Exercise Price Per Share, Options outstanding, Beginning balance Non-employee stock-based compensation, weighted-average exercise price Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Weighted - Average Remaining Contractual Life, Options outstanding Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value Aggregate Intrinsic Value, Options vested and expected to vest Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number Number of Options, vested and expected to vest Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price Weighted - Average Exercise Price Per Share, Options vested and expected to vest Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term Weighted - Average Remaining Contractual Life, Options vested and expected to vest Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value Total grant date fair value of options vested Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Outstanding Stock Maximum Annual increases in the number of shares available for issuance, percentage of outstanding capital stock Equity Award [Domain] Equity Award [Domain] Share based compensation arrangements by share based payment award options authorized in period weighted average exercise price. Share Based Compensation Arrangements By Share Based Payment Award Options Authorized In Period Weighted Average Exercise Price Weighted - Average Exercise Price Per Share, Options authorized Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Weighted - Average Exercise Price Per Share, Options exercised Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Weighted - Average Exercise Price Per Share, Options cancelled/forfeited Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Weighted - Average Exercise Price Per Share, Options granted Share-based compensation expense (income). Share Based Compensation Expense (Income) Non-cash compensation expense (income) Share Price Initial public offering price per share Shares Issued, Price Per Share Shares sold, price per share Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Share Value, Amount, Noncurrent Redeemable convertible preferred stock warrant liability Silicon valley bank credit facility. Silicon Valley Bank Credit Facility [Member] SVB Credit Facility [Member] Class of Stock [Axis] Class of Stock [Axis] Equity Components [Axis] Equity Components [Axis] Statement [Line Items] Statement [Line Items] Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Statement [Table] Statement [Table] Stockholders' Equity Attributable to Parent Total stockholders' deficit Stockholders' Equity Attributable to Parent [Abstract] Stockholders' deficit: Stockholders' Equity Note Disclosure [Text Block] Redeemable Convertible Preferred Stock and Stockholders' Deficit Stockholders' Equity Note, Redeemable Preferred Stock, Issue, Policy [Policy Text Block] Redeemable Convertible Preferred Stock Warrant Liability Stockholders' Equity Note, Stock Split, Conversion Ratio Reverse stock split ratio Stockholders' Equity, Reverse Stock Split Reverse stock split, description Stock Issued During Period, Shares, Conversion of Convertible Securities Conversion of convertible securities Stock Issued During Period, Shares, New Issues Stock issued during the period Number of shares sold Stock issued during period Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Number of Options, Options exercised Subsequent Event [Line Items] Subsequent Event [Line Items] Subsequent Event [Member] Subsequent Event [Member] Subsequent Events [Abstract] Subsequent Events [Abstract] Subsequent Events [Text Block] Subsequent Events Subsequent Event [Table] Subsequent Event [Table] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsidiary of Common Parent [Member] Freescale [Member] Sale of Stock [Axis] Sale of Stock [Axis] Supplemental Balance Sheet Disclosures [Text Block] Balance Sheet Components Supplemental Cash Flow Information [Abstract] Supplementary cash flow information: Temporary Equity, by Class of Stock [Table] Temporary Equity, by Class of Stock [Table] Temporary Equity, Carrying Amount, Attributable to Parent Carrying Value Redeemable convertible preferred stock, $0.0001 par value per share; 77,080,000 and 68,080,000 shares authorized as of September 30, 2016 and December 31, 2015, respectively; 2,486,199 shares issued and outstanding; aggregate liquidation preference of $64,642 Temporary Equity Disclosure [Abstract] Temporary Equity Disclosure [Abstract] Temporary Equity [Line Items] Temporary Equity [Line Items] Temporary Equity, Liquidation Preference Liquidation Preference Redeemable convertible preferred stock, liquidation preference, value Temporary Equity, Par or Stated Value Per Share Redeemable convertible preferred stock, par value Temporary Equity, Shares Authorized Redeemable convertible preferred stock, shares authorized Shares Authorized Temporary Equity, Shares Issued Redeemable convertible preferred stock, shares issued Temporary Equity, Shares Outstanding Redeemable convertible preferred stock, shares outstanding Shares Issued and Outstanding Temporary Equity [Table Text Block] Schedule of Authorized, Issued and Outstanding Redeemable Convertible Preferred Stock Term Loan [Member] Term Loan [Member] Term Loan [Member] Title of Individual [Axis] Title of Individual [Axis] Relationship to Entity [Domain] Relationship to Entity [Domain] Trading Symbol Trading Symbol Financial Instruments [Domain] Financial Instruments [Domain] Two thousand eight equity incentive plan. Two Thousand Eight Equity Incentive Plan [Member] 2008 Equity Incentive Plan [Member] Two thousand sixteen convertible promissory notes. Two Thousand Sixteen Convertible Promissory Notes [Member] 2016 Convertible Promissory Notes [Member] Two thousand sixteen employee stock purchase plan. Two Thousand Sixteen Employee Stock Purchase Plan [Member] 2016 Employee Stock Purchase Plan [Member] Two thousand sixteen equity incentive plan. Two Thousand Sixteen Equity Incentive Plan [Member] 2016 Employee Incentive Plan [Member] Two thousand sixteen notes and two thousand sixteen bridge notes. Two Thousand Sixteen Notes And Two Thousand Sixteen Bridge Notes [Member] 2016 Notes and 2016 Bridge Notes Member [Member] Two thousand sixteen subordinated convertible promissory notes. Two Thousand Sixteen Subordinated Convertible Promissory Notes [Member] 2016 Bridge Notes [Member] Use of Estimates, Policy [Policy Text Block] Use of Estimates Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] Warrants to Purchase Series A Redeemable Convertible Preferred Stock [Member] Warrants To Purchase Series A- Redeemable Convertible Preferred Stock [Member] Warrants to Purchase Series A Redeemable Convertible Preferred Stock [Member] Warrants to Purchase Series B Redeemable Convertible Preferred Stock [Member] Warrants To Purchase Series B- Redeemable Convertible Preferred Stock [Member] Warrants to Purchase Series B Redeemable Convertible Preferred Stock [Member] Weighted Average Number of Shares Outstanding, Basic and Diluted Weighted-average common shares outstanding used to calculate net loss per common share, basic and diluted Weighted-average shares used to compute net loss per common share, basic and diluted Weighted Average Number of Shares, Common Stock Subject to Repurchase or Cancellation Less: weighted-average unvested common shares subjected to repurchase Weighted Average Number of Shares Outstanding, Diluted [Abstract] Denominator: Weighted Average Number of Shares Outstanding, Basic Weighted-average common shares outstanding