Entity Central Index Key Cover [Abstract] Document Type Document Type Amendment Flag Amendment Flag Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Trading Symbol Trading Symbol Entity Registrant Name Entity Registrant Name Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Well-known Seasoned Issuer Entity Well Known Seasoned Issuer Entity Current Reporting Status Entity Current Reporting Status Entity Voluntary Filers Entity Voluntary Filers Entity Filer Category Entity Filer Category Entity Small Business Entity Small Business Entity Emerging Growth Company Entity Emerging Growth Company ICFR Auditor Attestation Flag Icfr Auditor Attestation Flag Entity Shell Company Entity Shell Company Entity Common Stock, Shares Outstanding Entity Common Stock Shares Outstanding Entity Public Float Entity Public Float Title of 12(b) Security Security12b Title Security Exchange Name Security Exchange Name Entity Interactive Data Current Entity Interactive Data Current Entity File Number Entity File Number Entity Incorporation, State or Country Code Entity Incorporation State Country Code Entity Tax Identification Number Entity Tax Identification Number Entity Address, Address Line One Entity Address Address Line1 Entity Address, Address Line Two Entity Address Address Line2 Entity Address, City or Town Entity Address City Or Town Entity Address, State or Province Entity Address State Or Province Entity Address, Postal Zip Code Entity Address Postal Zip Code City Area Code City Area Code Local Phone Number Local Phone Number Document Annual Report Document Annual Report Document Transition Report Document Transition Report Auditor Firm ID Auditor Firm Id Auditor Name Auditor Name Auditor Location Auditor Location Accrued severance expense. Statement Of Financial Position [Abstract] ASSETS Assets [Abstract] Current assets: Assets Current [Abstract] Cash and cash equivalents Cash And Cash Equivalents At Carrying Value Accounts receivable, net Accounts Receivable Net Current Prepaid expenses and other current assets Prepaid Expense And Other Assets Current Total current assets Assets Current Property and equipment, net Property Plant And Equipment Net Operating right-of-use lease assets Operating Lease Right Of Use Asset Other assets Other Assets Noncurrent Total assets Assets LIABILITIES AND STOCKHOLDERS’ EQUITY Liabilities And Stockholders Equity [Abstract] Current liabilities: Liabilities Current [Abstract] Accounts payable Accounts Payable Current Accrued expenses Accrued Liabilities Current Accrued severance Accrued Severance Expense Operating lease liabilities, current portion Operating Lease Liability Current Deferred revenue Contract With Customer Liability Current Total current liabilities Liabilities Current Long-term liabilities: Liabilities Noncurrent [Abstract] Operating lease liabilities, long-term portion Operating Lease Liability Noncurrent Total liabilities Liabilities Commitments and contingencies Commitments And Contingencies Stockholders’ equity: Stockholders Equity [Abstract] Preferred Stock, $0.00001 par value, 10,000,000 shares authorized at December 31, 2021 and December 31, 2020; no shares issued or outstanding Preferred Stock Value Common Stock, $0.00001 par value, 200,000,000 shares authorized at December 31, 2021 and December 31, 2020; 76,667,205 and 61,292,412 shares issued and outstanding at December 31, 2021 and December 31, 2020, respectively. Common Stock Value Additional paid-in capital Additional Paid In Capital Common Stock Accumulated deficit Retained Earnings Accumulated Deficit Total stockholders’ equity Stockholders Equity Total liabilities and stockholders’ equity Liabilities And Stockholders Equity Preferred stock, par value Preferred Stock Par Or Stated Value Per Share Preferred stock, shares authorized Preferred Stock Shares Authorized Preferred stock, shares issued Preferred Stock Shares Issued Preferred stock, shares outstanding Preferred Stock Shares Outstanding Common stock, par value Common Stock Par Or Stated Value Per Share Common stock, shares authorized Common Stock Shares Authorized Common stock, shares issued Common Stock Shares Issued Common stock, shares outstanding Common Stock Shares Outstanding Income Statement [Abstract] Revenue Revenue From Contract With Customer Including Assessed Tax 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 Severance expense Severance Costs1 Cost of services revenue Cost Of Goods And Services Sold Total operating expenses Costs And Expenses Loss from operations Operating Income Loss Other income (expense): Nonoperating Income Expense [Abstract] Interest income Interest Income Expense Net Loss on disposal of property and equipment Gain Loss On Sale Of Property Plant Equipment Total other income Nonoperating Income Expense Net loss Net Income Loss Basic and diluted loss per common share Earnings Per Share Basic And Diluted Weighted average shares outstanding, basic and diluted Weighted Average Number Of Share Outstanding Basic And Diluted Adjustments to additional paid in capital share based compensation performance share units. Stock issued during period shares at the market offering. Stock issued during period value at the market offering. Stock issued during period shares performance share units. Stock issued during period value performance share units. Statement Of Stockholders Equity [Abstract] Statement [Table] Statement [Table] Equity Components Statement Equity Components [Axis] Equity Component Equity Component [Domain] Common Stock [Member] Common Stock [Member] Additional Paid-in Capital [Member] Additional Paid In Capital [Member] Accumulated Deficit [Member] Retained Earnings [Member] Statement [Line Items] Statement [Line Items] Beginning balance Beginning balance (in shares) Shares Outstanding Stock-based compensation - stock options Adjustments To Additional Paid In Capital Share Based Compensation Stock Options Requisite Service Period Recognition Stock-based compensation - restricted stock units ("RSUs") Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition Stock-based compensation - employee stock purchase plan ("ESPP") Adjustments To Additional Paid In Capital Share Based Compensation Employee Stock Purchase Program Requisite Service Period Recognition Stock-based compensation - performance share units ("PSUs") Adjustments To Additional Paid In Capital Share Based Compensation Performance Share Units Issuance of shares for RSUs Stock Issued During Period Value Restricted Stock Award Gross Issuance of shares for RSUs (in shares) Stock Issued During Period Shares Restricted Stock Award Gross Issuance of shares for PSUs Stock Issued During Period Value Performance Share Units Issuance of shares for PSUs (in shares) Stock Issued During Period Shares Performance Share Units Shares purchased from contributions to the ESPP Stock Issued During Period Value Employee Stock Purchase Plan Shares purchased from contributions to the ESPP (in shares) Stock Issued During Period Shares Employee Stock Purchase Plans Issuance of shares in an at-the-market ("ATM") placement, net of issuance costs Stock Issued During Period Value At The Market Offering Issuance of shares in an at-the-market ("ATM") placement, net of issuance costs (in shares) Stock Issued During Period Shares At The Market Offering Net loss Ending balance Ending balance (in shares) Sale of Stock Subsidiary Sale Of Stock [Axis] Sale of Stock Sale Of Stock Name Of Transaction [Domain] Private Placement [Member] Private Placement [Member] At the market. ATM [Member] At The Market [Member] Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs Adjustments To Additional Paid In Capital Stock Issued Issuance Costs Increase (decrease) in operating lease right-of-use assets. Increase (Decrease) in Accrued Severance Expense. The increase (decrease) in operating lease liabilities. Proceeds from Issuance ATM Offering. Statement Of Cash Flows [Abstract] Award Type Award Type [Axis] Award Type Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name [Domain] Performance Shares Performance Shares [Member] Restricted Stock Units (RSUs) [Member] Restricted Stock Units R S U [Member] Cash flows from operating activities: Net Cash Provided By Used In Operating Activities [Abstract] Net loss Profit Loss 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 Stock based compensation Share Based Compensation Change in operating lease right-of-use assets Increase Decrease In Operating Lease Right Of Use Assets Bad debt expense Provision For Doubtful Accounts Loss on disposal of property and equipment Changes in operating assets and liabilities: Increase Decrease In Operating Capital [Abstract] Accounts receivable Increase Decrease In Accounts Receivable Prepaid expenses and other current assets Increase Decrease In Prepaid Deferred Expense And Other Assets Other assets Increase Decrease In Other Noncurrent Assets Accounts payable Increase Decrease In Accounts Payable Accrued expenses Increase Decrease In Accrued Liabilities Accrued severance expense Increase Decrease In Accrued Severance Expense Operating lease liabilities Increase Decrease In Operating Lease Liabilities Deferred revenue Increase Decrease In Contract With Customer Liability Net cash used in operating activities Net Cash Provided By Used In Operating Activities Cash flows used in 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] Net proceeds from an at-the-market ("ATM") offerings Proceeds From Issuance At The Market Offering Proceeds from contributions to employee stock purchase plan Proceeds From Stock Plans Net cash provided by financing activities Net Cash Provided By Used In Financing Activities Net (decrease) increase in cash and cash equivalents Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect Cash and cash equivalents - beginning Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations Cash and cash equivalents - ending Supplemental disclosure of non-cash financing activities: Noncash Investing And Financing Items [Abstract] Common stock issued Stock Issued1 Documents Incorporated by Reference Documents Incorporated By Reference [Text Block] Organization Consolidation And Presentation Of Financial Statements [Abstract] Business Organization, Nature of Operations Organization Consolidation And Presentation Of Financial Statements Disclosure [Text Block] The entire disclosure for liquidity and management plan. Liquidity and management plan disclosure. Liquidity And Management Plan Disclosure [Abstract] Liquidity and Management Plans Liquidity And Management Plan Disclosure [Text Block] Accounting Policies [Abstract] Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Property Plant And Equipment [Abstract] Property and Equipment Property Plant And Equipment Disclosure [Text Block] Payables And Accruals [Abstract] Accrued Expenses Accounts Payable Accrued Liabilities And Other Liabilities Disclosure Current [Text Block] Commitments And Contingencies Disclosure [Abstract] Commitments and Contingencies Commitments And Contingencies Disclosure [Text Block] Equity [Abstract] Stockholders' Equity Stockholders Equity Note Disclosure [Text Block] Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] Stock Based Compensation Disclosure Of Compensation Related Costs Share Based Payments [Text Block] Income Tax Disclosure [Abstract] Income Taxes Income Tax Disclosure [Text Block] Related Party Transactions [Abstract] Related Party Transactions Related Party Transactions Disclosure [Text Block] Risks And Uncertainties [Abstract] Customer Concentration Concentration Risk Disclosure [Text Block] Basis of Presentation Basis Of Accounting Policy Policy [Text Block] Use of Estimates Use Of Estimates Cash and Cash Equivalents Cash And Cash Equivalents Policy [Text Block] Revenue Recognition Revenue From Contract With Customer Policy [Text Block] Research and Development Research And Development Expense Policy Stock-Based Compensation Share Based Compensation Option And Incentive Plans Policy Income Taxes Income Tax Policy [Text Block] Net Loss Per Common Share Earnings Per Share Policy [Text Block] Leases Lessee Leases Policy [Text Block] Recent Accounting Pronouncements New Accounting Pronouncements Policy Policy [Text Block] Management's Evaluation of Subsequent Events Subsequent Events Policy Policy [Text Block] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Text Block] Summary of Property and Equipment Property Plant And Equipment [Text Block] Summary of Accrued Expenses Schedule Of Accrued Liabilities Table [Text Block] Schedule of Future Minimum Rental Payments for Operating Leases Lessee Operating Lease Liability Maturity Table [Text Block] Summary of Stock Option Activity Schedule Of Share Based Compensation Stock Options Activity Table [Text Block] Schedule of Restricted Stock Units Activity Schedule Of Nonvested Restricted Stock Units Activity Table [Text Block] Summary of Activity Related to PSUs Share Based Compensation Performance Shares Award Outstanding Activity Table [Text Block] Summary of Fair Values of Purchase Options Granted Schedule Of Share Based Payment Award Stock Options Valuation Assumptions Table [Text Block] Summary of Stock-based Compensation Costs Recognized Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Text Block] Summary of Stock-based Compensation Reflected within Statements of Operations Schedule Of Compensation Cost For Share Based Payment Arrangements Allocation Of Share Based Compensation Costs By Plan Table [Text Block] Schedule of Deferred Tax Assets and Liabilities Schedule Of Deferred Tax Assets And Liabilities Table [Text Block] Summary of Valuation Allowance Summary Of Valuation Allowance [Text Block] Schedule of Effective Income Tax Rate Reconciliation Schedule Of Effective Income Tax Rate Reconciliation Table [Text Block] Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Liquidity And Management Plans [Table] Liquidity And Management Plans [Table] Liquidity And Management Plans [Table] Product and Service Product Or Service [Axis] Product and Service Products And Services [Domain] Technology Service [Member] Technology Service [Member] Liquidity And Management Plans [Line Items] Liquidity And Management Plans [Line Items] Engineering product development Net loss Net cash provided by (used in) operating activities Proceeds of securities offerings Proceeds From Issuance Of Common Stock Cash and cash equivalents, at carrying value, total Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Summary of significant accounting policies. Summary Of Significant Accounting Policies [Table] Summary Of Significant Accounting Policies [Table] Product development projects revenue. Product Development Projects Revenue [Member] Product Development Projects Revenue [Member] Royalty Revenue [Member] Royalty [Member] Contract services revenue. Contract Services Revenue [Member] Contract Services Revenue [Member] Employee stock purchase plan. Employee Stock Purchase Plan [Member] Employee Stock Purchase Plan [Member] Antidilutive Securities Antidilutive Securities Excluded From Computation Of Earnings Per Share By Antidilutive Securities [Axis] Antidilutive Securities, Name Antidilutive Securities Name [Domain] Warrants Issued to Private Investors [Member] Warrant [Member] Class of Warrant or Right Class Of Warrant Or Right [Axis] Class of Warrant or Right Class Of Warrant Or Right [Domain] Expiring October Six Two Thousand Twenty Two Member. Expiring at October 6 2022 Expiring October Six Two Thousand Twenty Two [Member] Expiring March first Two Thousand Twenty Four. Expiring at March 1 2024 Expiring March First Two Thousand Twenty Four [Member] Summary Of Significant Accounting Policies [Line Items] Summary Of Significant Accounting Policies [Line Items] Research and development expense, total Common stock purchase price discount percentage Share Based Compensation Arrangement By Share Based Payment Award Discount From Market Price Purchase Date Liability for unrecognized tax benefits Unrecognized Tax Benefits Interest or penalties for uncertain tax positions Unrecognized Tax Benefits Income Tax Penalties And Interest Expense Antidilutive securities excluded from computation of earnings per share, amount Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount Employee Stock Option [Member] Employee Stock Option [Member] Total potentially dilutive securities Class Of Warrant Or Right Exercise Price Of Warrants Or Rights1 Class Of Warrant Or Right Exercise Price Of Warrants Or Rights1 Schedule Of Property Plant And Equipment [Table] Schedule Of Property Plant And Equipment [Table] Long-Lived Tangible Asset Property Plant And Equipment By Type [Axis] Long-Lived Tangible Asset Property Plant And Equipment Type [Domain] Computer Software [Member] Software And Software Development Costs [Member] Computer hardware. Computer Hardware [Member] Computer Hardware [Member] Furniture and Fixtures [Member] Furniture And Fixtures [Member] Leasehold Improvements [Member] Leasehold Improvements [Member] Property, Plant and Equipment [Line Items] Property Plant And Equipment [Line Items] Property, Plant and Equipment, Gross, Total Property Plant And Equipment Gross Less – accumulated depreciation Accumulated Depreciation Depletion And Amortization Property Plant And Equipment Total property and equipment, net Statistical Measurement Range [Axis] Statistical Measurement Range [Member] Minimum [Member] Minimum [Member] Maximum [Member] Maximum [Member] Computer hardware and software member. Computer Hardware and Software [Member] Computer Hardware And Software [Member] Property, plant and equipment, useful life Property Plant And Equipment Useful Life Property, plant and equipment, estimated useful lives Property Plant And Equipment Estimated Useful Lives Disposal of property, plant and equipment Property Plant And Equipment Disposals Depreciation and amortization expense Accrued compensation Employee Related Liabilities Current Accrued legal expenses Accrued Professional Fees Current Other accrued expenses Other Accrued Liabilities Current Total Operating lease monthly rental expense. Monthly lease payment, threshold limit. Commitments and contingencies. Commitments and contingencies. Commitments And Contingencies [Table] Commitments And Contingencies [Table] Geographical Statement Geographical [Axis] Geographical Segment Geographical [Domain] San Jose, California. San Jose, California [Member] San Jose California [Member] Costa Mesa, California. Costa Mesa, California [Member] Costa Mesa California [Member] Accounting Standards Update Adjustments For New Accounting Pronouncements [Axis] Accounting Standards Update Type Of Adoption [Member] ASU No. 2016-02 [Member] Accounting Standards Update201602 [Member] Commitments And Contingencies [Line Items] Commitments And Contingencies [Line Items] Operating lease, renewal term Lessee Operating Lease Renewal Term Operating leases, rent expense Operating Lease Monthly Rental Expense Maximum monthly lease payment Monthly Lease Payment Threshold Limit Operating lease right-of-use assets Operating lease liabilities Total operating lease payments Lessee Operating Lease Liability Payments Due Long-term portion of operating lease liabilities Weighted average remaining lease term Operating Lease Weighted Average Remaining Lease Term1 Operating Leases Future Minimum Payments Due [Abstract] 2022 Lessee Operating Lease Liability Payments Due Next Twelve Months 2023 Lessee Operating Lease Liability Payments Due Year Two Total future lease payments Present value discount (3.7% weighted average) Lessee Operating Lease Liability Undiscounted Excess Amount Total operating lease liabilities Operating Lease Liability Initial term of agreement. Quarterly payment for service agreement. Additional term of agreement. Collaborative Arrangement and Arrangement Other than Collaborative Type Of Arrangement [Axis] Collaborative Arrangement and Arrangement Other than Collaborative Arrangements And Nonarrangement Transactions [Member] Hosted Design Solution Agreement [Member] Hosted Design Solution Agreement [Member] Hosted Design Solution Agreement [Member] Initial term of agreement Initial Term Of Agreement Quarterly payments for service agreement Quarterly Payment For Service Agreement Additional term of agreement Additional Term Of Agreement Balance Sheet Location Balance Sheet Location [Axis] Balance Sheet Location Balance Sheet Location [Domain] Accrued expenses. Accrued Expenses [Member] Accrued Expenses [Member] Title of Individual Title Of Individual [Axis] Title of Individual Title Of Individual With Relationship To Entity [Domain] Executive Officers [Member] Executive Officer [Member] Expense recognized by company Labor And Related Expense Bonus accrued but not yet paid Accrued Bonuses Current Annual bonus percentage. One time sign on bonus amount. Bonus payable, number of installments. Bonus payable Installment amount. Related Party Related Party Transactions By Related Party [Axis] Related Party Related Party [Domain] Mr. Johnston. Mr. Johnston [Member] Mr Johnston [Member] Johnston A and R CIC Agreement. Johnston A&R CIC Agreement [Member] Johnston A And R C I C Agreement [Member] Salary Salaries And Wages Annual bonus, percentage Annual Bonus Percentage One time sign on bonus amount One Time Sign On Bonus Amount Bonus payable, number of installments Bonus Payable Number Of Installments Bonus payable installment amount Bonus Payable Installment Amount Debt description Debt Instrument Description Options granted Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross Additional equity award. Additional equity award per year. Additional equity award Additional Equity Award Vesting percentage Sharebased Compensation Arrangement By Sharebased Payment Award Award Vesting Rights Percentage Vesting period Sharebased Compensation Arrangement By Sharebased Payment Award Expiration Period Additional equity award per year. Additional Equity Award Per Year Target bonus percentage. Target bonus percentage Target Bonus Percentage Represents the percentage of base salary. Agreement effective date. Mr Rizzone [Member] Mr. Rizzone [Member] Mr Rizzone [Member] Financial Instrument Financial Instrument [Axis] Financial Instruments Transfers And Servicing Of Financial Instruments Types Of Financial Instruments [Domain] Separation Agreement member Separation Agreement Separation Agreement [Member] Agreement effective date Agreement Effective Date Officers' compensation Officers Compensation Employment agreement percentage of base salary Employment Agreement Percentage Of Base Salary Compensation-based payments Allocated Share Based Compensation Expense Additional lump sum cash payment Net Change Annuities And Investment Certificates Description of other commitments Other Commitments Description Strategic Alliance Agreement. Strategic Alliance Agreement [Member] Strategic Alliance Agreement [Member] Stockholders Equity Note [Abstract] Schedule Of Stock By Class [Table] Schedule Of Stock By Class [Table] Restricted stock units rescission agreements. RSU Rescission Agreements [Member] Restricted Stock Units Rescission Agreements [Member] Consummation of offering under shelf registration. Consummation of Offering Under Shelf Registration [Member] Consummation Of Offering Under Shelf Registration [Member] Sales agreement. Sales Agreement [Member] Sales Agreement [Member] Class Of Stock [Line Items] Class Of Stock [Line Items] Number of shares returned Stock Repurchased And Retired During Period Shares Number of common stock voting entitlement per share. Number of common stock voting entitlement per share Number Of Common Stock Voting Entitlement Per Share Potential proceeds through offering any combination of debt or equity securities. Stock issued during period value private placements. Issuance cost of common stock and warrants. Proceeds from shelf registration debt or equity securities Proceeds From Shelf Registration Debt Or Equity Securities Proceeds from private offering of shares of common stock and warrants Stock Issued During Period Value Private Placements Net of issuance costs from offering of shares Issuance Cost Of Common Stock And Warrants Class of warrant or right, number of securities called by warrants or rights Class Of Warrant Or Right Number Of Securities Called By Warrants Or Rights Class of warrant or right, exercise price of warrants or rights Proceeds from at the market offering of shares of common stock and warrants Payments of stock issuance costs accounting expense. At the market funds receivable. Securities reserved for issuance Proceeds From Issuance Or Sale Of Equity Proceeds from (Payments for) in Securities Sold under Agreements Proceeds From Payments For In Securities Sold Under Agreements To Repurchase Sale of stock, Description Sale Of Stock Description Of Transaction At-the-market ("ATM") funds receivable At The Market Funds Receivable Accounting issuance costs will be paid Payments Of Stock Issuance Costs Accounting Expense Common stock outstanding abstract. Common stock outstanding abstract Common Stock Outstanding [Abstract] Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Plan Name Plan Name [Axis] Plan Name Plan Name [Domain] 2013 equity incentive plan. 2013 Equity Incentive Plan [Member] Two Thousand Thirteen Equity Incentive Plan [Member] Non-employee equity compensation plan 2014. Non-Employee Equity Compensation Plan 2014 [Member] Nonemployee Equity Compensation Plans2014 [Member] Two Thousand And Fifteen Performance Share Unit Plan. 2015 Performance Share Unit Plan [Member] Two Thousand And Fifteen Performance Share Unit Plan [Member] 2017 equity inducement plan. 2017 Equity Inducement Plan [Member] Two Thousands Seventeen Equity Inducement Plan [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Common stock, capital shares reserved for future issuance Common Stock Capital Shares Reserved For Future Issuance Share-based compensation arrangement by share-based payment award, number of shares authorized for issuance Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized Common stock remain eligible to be issued. Common stock remain eligible to be issued Common Stock Remain Eligible To Be Issued Share based compensation arrangement by share based payment award minimum employee subscription rate. Lowest percentage of annual compensation to be utilized by an employee for purchase of shares under the plan Share Based Compensation Arrangement By Share Based Payment Award Minimum Employee Subscription Rate Highest percentage of annual compensation to be utilized by an employee for purchase of shares under the plan Share Based Compensation Arrangement By Share Based Payment Award Maximum Employee Subscription Rate Maximum number of shares permitted to purchase Share Based Compensation Arrangement By Share Based Payment Award Maximum Number Of Shares Per Employee Exercise price discount from fair value on offering date Share Based Compensation Arrangement By Share Based Payment Award Discount From Market Price Offering Date Exercise price discount from fair value on exercise date Share-based compensation arrangement by share-based payment award, terms of award Share Based Compensation Arrangement By Share Based Payment Award Terms Of Award Employee contribution through payroll withholdings. Employee contribution through payroll withholdings Employee Contribution Through Payroll Withholdings Share-based compensation arrangement by share-based payment award, equity instruments other than options, grants in period Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Option Indexed to Issuer's Equity Option Indexed To Issuers Equity Equity [Axis] Option Indexed to Issuer's Equity, Type Option Indexed To Issuers Equity Type [Domain] Number of Options, Outstanding Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number Number of Options, Granted Number of Options, Exercised Stock Issued During Period Shares Stock Options Exercised Number of Options, Forfeited Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period Number of Options, Outstanding Number of Options, Exercisable Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number Weighted Average Exercise Price, Outstanding Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price Weighted Average Exercise Price, Granted Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price Weighted Average Exercise Price, Exercised Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price Weighted Average Exercise Price, Forfeited Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price Weighted Average Exercise Price, Outstanding Weighted Average Exercise Price, Exercisable Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price Weighted Average Remaining Life In Years, Outstanding Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 Weighted Average Remaining Life In Years, Exercisable Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 Intrinsic Value, Outstanding Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value Intrinsic Value, Exercisable Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 Employee service share-based compensation, nonvested awards, compensation not yet recognized, stock options Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Stock Options Share-based compensation arrangement by share-based payment award, options, exercises in period, intrinsic value Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value Options granted Employee. Employee [Member] Employee [Member] Share-based compensation arrangement by share-based payment award, award vesting period Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 Employee service share-based compensation, nonvested awards, compensation not yet recognized, share-based awards other than options Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Share Based Awards Other Than Options Employee service share-based compensation, nonvested awards, compensation cost not yet recognized, period for recognition Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 Number of Options, Outstanding Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number RSUs granted RSUs forfeited Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period RSUs vested Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Number of Options, Outstanding Weighted Average Grant Date Fair Value, Beginning Balance Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value Weighted Average Grant Date Fair Value, RSUs granted Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value Weighted Average Grant Date Fair Value, RSUs forfeited Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value Weighted Average Grant Date Fair Value, RSUs vested Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value Weighted Average Grant Date Fair Value, Ending Balance 2015 Performance share unit plan. 2015 Performance Share Unit Plan [Member] Two Thousand Fifteen Performance Share Unit [Member] Performance Share Units [Member] Phantom Share Units P S Us [Member] Performance Shares [Member] Share-based compensation arrangement by share-based payment award, equity instruments other than options, grants in period It represents the share based compensation arrangement by share based payment award unamortized value. Share based compensation arrangement by share based payment award unamortized value Share Based Compensation Arrangement By Share Based Payment Award Unamortized Value PSUs granted PSUs forfeited PSUs vested Weighted Average Grant Date Fair Value, PSUs granted Weighted Average Grant Date Fair Value, PSUs forfeited Weighted Average Grant Date Fair Value, PSUs vested Percentage of proportionate value of call option for stock. Percentage of proportionate value of put option for stock. Share-based compensation arrangement by share-based payment award, equity instruments other than options, grants in period, weighted average grant date fair value Percentage of proportionate value of call option of stock Percentage Of Proportionate Value Of Call Option For Stock Percentage of proportionate value of put option of stock Percentage Of Proportionate Value Of Put Option For Stock Option Indexed to Issuer's Equity, Type Option Indexed To Issuers Equity Type [Axis] Stock price range Share Price Dividend yield Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate Expected volatility range Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Risk-free interest rate range Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Expected life Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 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] Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] Options Stock Issued During Period Value Stock Options Exercised Total Severance Expense Income Statement Location Income Statement Location [Axis] Income Statement Location Income Statement Location [Domain] Research and Development Expense [Member] Research And Development Expense [Member] Selling and Marketing Expense [Member] Selling And Marketing Expense [Member] General and Administrative Expense [Member] General And Administrative Expense [Member] Severance expense Severance Expense Share-based Compensation, Total Tax cuts and jobs act of 2017 accounting Complete 1 Income Tax Contingency [Table] Income Tax Contingency [Table] Income Tax Authority Income Tax Authority [Axis] Income Tax Authority Income Tax Authority [Domain] Domestic Tax Authority [Member] Domestic Country [Member] State and Local Jurisdiction [Member] State And Local Jurisdiction [Member] Income Tax Contingency [Line Items] Income Tax Contingency [Line Items] Tax Cuts and Jobs Act of 2017 Accounting Complete Tax Cuts And Jobs Act Of2017 Accounting Complete1 Deferred tax assets, start up and organizational costs. Deferred tax assets, leasing arrangements. Deferred tax assets: Components Of Deferred Tax Assets [Abstract] Research and development tax credits Deferred Tax Assets Tax Credit Carryforwards Research Net operating loss carryovers Deferred Tax Assets Operating Loss Carryforwards Property and equipment Deferred Tax Assets Property Plant And Equipment Research and development costs Deferred Tax Assets In Process Research And Development Start-up and organizational costs Deferred Tax Assets Start Up And Organizational Costs Stock-based compensation Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost Operating lease liability Deferred Tax Assets Leasing Arrangements Other accruals Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Other Total gross deferred tax assets Deferred Tax Assets Gross Less: valuation allowance Deferred Tax Assets Valuation Allowance Total deferred tax assets Deferred Tax Assets Net Deferred tax liabilities: Components Of Deferred Tax Liabilities [Abstract] Operating lease right-of-use asset Deferred Tax Liabilities Leasing Arrangements Total deferred tax liabilities Deferred Income Tax Liabilities Total deferred taxes, net Deferred Tax Assets Liabilities Net January 1, Increase in valuation allowance Valuation Allowance Deferred Tax Asset Change In Amount December 31, Represents the expiration period of tax credit research and development for the reporting period. Represents the expiration period of tax credit carry forward for the reporting period. Operating loss carryforwards Operating Loss Carryforwards Deferred tax assets, tax credit carryforwards, research Tax credit research and development expiration period Tax Credit Research And Development Expiration Period Tax credit carry forward expiration period Tax Credit Carryforward Expiration Period Operating loss carryforwards, limitations on use Operating Loss Carryforwards Limitations On Use Effective income rax rate reconciliation, nondeductible expense, executive compensation, percent. Tax benefit at federal statutory rate Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate State income taxes Effective Income Tax Rate Reconciliation State And Local Income Taxes Permanent differences: Effective Income Tax Rate Reconciliation Nondeductible Expense [Abstract] Stock-based compensation Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost Executive compensation Effective Income Tax Rate Reconciliation Nondeductible Expense Executive Compensation Percent Effective income tax rate reconciliation, prior year income taxes, percent Effective Income Tax Rate Reconciliation Prior Year Income Taxes Change in effective tax rate Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate Effective income tax rate reconciliation, tax credit, research, percent Effective Income Tax Rate Reconciliation Tax Credits Research Effective income tax rate reconciliation, change in deferred tax assets valuation allowance, percent Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance Effective income tax rate Effective Income Tax Rate Continuing Operations Schedule Of Related Party Transactions By Related Party [Table] Schedule Of Related Party Transactions By Related Party [Table] Private Placements [Member] Agreement [Axis] Agreement Agreement [Axis] Agreement [Domain] Agreement Agreement [Domain] Warrant Issued to Private Investors [Member] Contract services. Contract Services [Member] Contract Services [Member] Chip development expense. Chip Development Expense Chip Development Expense [Member] Related Party Transaction Related Party Transaction [Axis] Related Party Transaction Related Party Transaction [Domain] Dialog Semiconductor Plc. Dialog Semiconductor Plc [Member] Dialog Semiconductor Plc [Member] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Stock issued during period, shares, new issues Stock Issued During Period Shares New Issues Class of warrant or right, number of securities called by warrants or rights Equity method investment, ownership percentage Equity Method Investment Ownership Percentage Revenue Revenue From Contract With Customer Excluding Assessed Tax Warrants outstanding Class Of Warrant Or Right Outstanding Concentration risk, number of customers. Concentration Risk [Table] Concentration Risk [Table] Concentration Risk Type Concentration Risk By Type [Axis] Concentration Risk Type Concentration Risk Type [Domain] Customer Concentration Risk [Member] Customer Concentration Risk [Member] Customer Concentration Risk [Member] Credit Concentration Risk [Member] Concentration Risk Benchmark Concentration Risk By Benchmark [Axis] Concentration Risk Benchmark Concentration Risk Benchmark [Domain] Revenues [Member] Sales Revenue Net [Member] Accounts Receivable [Member] Accounts Receivable [Member] Customer Major Customers [Axis] Customer Name Of Major Customer [Domain] Three customer. Three Customer [Member] Three Customer [Member] Four customer. Four Customer [Member] Four Customer [Member] Concentration Risk [Line Items] Concentration Risk [Line Items] Number of customers Concentration Risk Number Of Customers Concentration percentage Concentration Risk Percentage1