Finite-lived intangible assets, accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Schedule of Debt Securities, Available-for-Sale Debt Securities, Available-for-Sale [Table Text Block] Weighted average shares used in computing per share amounts Earnings Per Share, Diluted, Other Disclosure [Abstract] Stockholders' deficit: Temporary Equity [Abstract] Restricted cash, current Restricted Cash, Current Award Timing Predetermined Award Timing Predetermined [Flag] Related Party Transaction [Axis] Related Party Transaction [Axis] Remainder of 2025 Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Intangible assets, gross Intangible Assets, Gross (Excluding Goodwill) Indefinite-lived Intangible Assets [Axis] Indefinite-Lived Intangible Assets [Axis] Entity File Number Entity File Number Additional Paid-in Capital Additional Paid-in Capital [Member] Loss from equity method investment, net of tax Loss from equity method investment Income (Loss) from Equity Method Investments Tabular List, Table Tabular List [Table Text Block] Leases [Abstract] Net loss per share attributable to common stockholders Earnings Per Share, Basic [Abstract] Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Accounts payable Increase (Decrease) in Accounts Payable Contract assets, current portion Contract with Customer, Asset, after Allowance for Credit Loss, Current Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Measurement Basis [Axis] Measurement Basis [Axis] Net loss per share attributable to common stockholders, basic (in dollars per share) Net loss per share, basic (in dollars per share) Earnings Per Share, Basic Adjustment to Compensation: Adjustment to Compensation [Axis] RELATED PARTY TRANSACTIONS Related Party Transactions Disclosure [Text Block] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Capital shares reserved for future issuance (in shares) Common Stock, Capital Shares Reserved for Future Issuance REVENUE Revenue from Contract with Customer [Text Block] Issuance of common stock under employee stock purchase plan (ESPP) (in shares) Stock Issued During Period, Shares, Employee Stock Purchase Plans Issuance of common stock for settlement of Restricted Stock Units (RSUs) (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Unsatisfied performance obligations Revenue, Remaining Performance Obligation, Amount Adjustment to Compensation, Amount Adjustment to Compensation Amount Concentration risk, percentage Concentration Risk, Percentage Principles of Consolidation Consolidation, Policy [Policy Text Block] Nicholas B. Hawkins [Member] Nicholas B. Hawkins Stock-based compensation Share-Based Payment Arrangement, Noncash Expense Less than one year Investments, Amortized Cost, Maturity, Allocated and Single Maturity Date, Remainder of Fiscal Year Investments, Amortized Cost, Maturity, Allocated and Single Maturity Date, Remainder of Fiscal Year Stock options Share-Based Payment Arrangement, Option [Member] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Total stockholders' deficit Balance at beginning of period Balance at end of period Equity, Attributable to Parent Other comprehensive loss: Other Comprehensive Income (Loss), Net of Tax [Abstract] Insider Trading Policies and Procedures [Line Items] Total stock-based compensation Share-Based Payment Arrangement, Expense Common stock, authorized (in shares) Common Stock, Shares Authorized Goodwill and Intangible Assets Disclosure [Abstract] Current assets: Assets, Current [Abstract] TOTAL 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Maturities of Operating Lease Liabilities Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Debt Instrument [Line Items] Debt Instrument [Line Items] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Pay vs Performance Disclosure [Line Items] Present value of lease liabilities Operating Lease, Liability Unrealized Gains (Losses) Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain (Loss), before Tax Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Entity Shell Company Entity Shell Company Other liabilities Other Liabilities, Noncurrent Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Goodwill impairments Goodwill, Impairment Loss Statement of Stockholders' Equity [Abstract] Vendor financing arrangements, current Long-Term Debt, Current Maturities Statement of Cash Flows [Abstract] Company Selected Measure Amount Company Selected Measure Amount 2028 Lessee, Operating Lease, Liability, to be Paid, Year Three Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Line of Credit Facility [Table] Line of Credit Facility [Table] Comprehensive loss Comprehensive Income (Loss), Net of Tax, Attributable to Parent Long-term investments (Note 5) Debt Securities, Available-for-Sale, Excluding Accrued Interest, Noncurrent Name Measure Name Letter of Credit Letter of Credit [Member] Schedule of Stock-Based Compensation Related to Stock-Based Awards to Employees Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] Operating lease liabilities, current Operating Lease, Liability, Current Document Fiscal Period Focus Document Fiscal Period Focus Award Timing Method Award Timing Method [Text Block] Variable royalties and other Variable Royalties And Other [Member] Variable Royalties And Other Award Type [Axis] Award Type [Axis] Deferred revenue, noncurrent Contract with Customer, Liability, Noncurrent Present value of vendor financing arrangements Long-Term Debt TOTAL ASSETS Assets Investment, Name [Domain] Investment, Name [Domain] Vendor Financing Arrangements Vendor Financing Arrangements [Member] Vendor Financing Arrangements 2026 Finite-Lived Intangible Asset, Expected Amortization, Year One Trading Symbol Trading Symbol 2029 Lessee, Operating Lease, Liability, to be Paid, Year Four Vested (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Cash, Cash Equivalents and Restricted Cash Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block] Customer C Customer C [Member] Customer C Entity Address, City or Town Entity Address, City or Town CASH FLOWS FROM OPERATING ACTIVITIES: Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Concentration Risk Type [Axis] Concentration Risk Type [Axis] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Income Statement Location [Domain] Statement of Income Location, Balance [Domain] Restricted stock units Restricted Stock Units (RSUs) [Member] Customer A Customer A [Member] Customer A Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Impairment loss Equity Method Investment, Other-than-Temporary Impairment 2029 Finite-Lived Intangible Asset, Expected Amortization, Year Four Entity Emerging Growth Company Entity Emerging Growth Company Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Total Capitalized Contract Cost, Net Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Grants in period, vested, grant date fair value Share-Based Compensation, Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Grants In Period, Vested, Grant Date Fair Value Share-Based Compensation, Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Grants In Period, Aggregate Intrinsic Value, Vested Level 2 Fair Value, Inputs, Level 2 [Member] Equity method investment Equity Method Investments Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Unsatisfied performance obligations, excluding flexible spending account commitment Revenue, Remaining Performance Obligation, Excluding Flexible Spending Account Commitment, Amount Revenue, Remaining Performance Obligation, Excluding Flexible Spending Account Commitment, Amount Common stock, outstanding (in shares) Balance at beginning of period (in shares) Balance at end of period (in shares) Common Stock, Shares, Outstanding Plan Name [Axis] Plan Name [Axis] PEO PEO [Member] Schedules of Disaggregation of Revenue Disaggregation of Revenue [Table Text Block] Noncash activities: Noncash Investing and Financing Items [Abstract] Loss before income taxes and loss from equity method investment Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest Changes in operating assets and liabilities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Issuance of common stock upon exercise of stock options Stock Issued During Period, Value, Stock Options Exercised Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Schedule of Future Amortization Expense Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Expected volatility Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate Accumulated Deficit Retained Earnings [Member] Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Interest rate, effective percentage Debt Instrument, Interest Rate, Effective Percentage Entity Address, Postal Zip Code Entity Address, Postal Zip Code Restatement Determination Date Restatement Determination Date Share-Based Payment Arrangement [Abstract] CASH, CASH EQUIVALENTS AND RESTRICTED CASH, beginning of period CASH, CASH EQUIVALENTS AND RESTRICTED CASH, end of period Cash, cash equivalents and restricted cash at end of period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Income Statement [Abstract] Provision for income taxes Income tax expense (benefit) Income Tax Expense (Benefit) Continue net unrealized loss position Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer Equity method investment, transaction costs Equity Method Investment, Transaction Costs Equity Method Investment, Transaction Costs Preferred stock, shares issued (in shares) Preferred Stock, Shares Issued Intangibles, net Intangible assets, net Intangible Assets, Net (Excluding Goodwill) Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Product and Service [Domain] Product and Service [Domain] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Customer Concentration Risk Customer Concentration Risk [Member] Schedules of Capitalized Direct Commission Costs Capitalized Contract Cost [Table Text Block] Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Schedule of Subsidiary or Equity Method Investee [Table] Subsidiary or Equity Method Investee, Sale of Stock [Table] Organization, Consolidation and Presentation of Financial Statements [Abstract] Unrealized pension actuarial gain Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. 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Difference, Footnote [Text Block] Schedule of Operating Lease Costs Lease, Cost [Table Text Block] PEO Total Compensation Amount PEO Total Compensation Amount Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Money market funds Money Market Funds [Member] Collaboration Agreement Collaboration Agreement [Member] Collaboration Agreement Remainder of 2025 Finite-Lived Intangible Asset, Expected Amortization, Remainder of Fiscal Year Equity Components [Axis] Equity Components [Axis] Entity Ex Transition Period Entity Ex Transition Period Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Concentration Risk [Table] Concentration Risk [Table] Number of reportable segment Number of Reportable Segments Other Performance Measure, Amount Other Performance Measure, Amount Schedule of Vendor Financing Arrangements Contractual Obligation, Fiscal Year Maturity [Table Text Block] Entity Address, State or Province Entity Address, State or Province Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Security, Excluded EPS Calculation [Table] Fair Value Measurements Fair Value Measurement, Policy [Policy Text Block] Total current liabilities Liabilities, Current Revenue, remaining performance obligation, flexible spending account commitment Revenue, Remaining Performance Obligation, Flexible Spending Account Commitment, Amount Revenue, Remaining Performance Obligation, Flexible Spending Account Commitment, Amount Individual: Individual [Axis] Operating lease right-of-use assets, exchanged for lease obligations Right-of-Use Asset Obtained in Exchange for Finance Lease Liability Research and development Research and Development Expense [Member] Net cash provided by investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Remaining performance obligation, expected timing of satisfaction Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Document Fiscal Year Focus Document Fiscal Year Focus Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Operating lease right-of-use assets Operating Lease, Right-of-Use Asset Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Effective income tax rate (as a percent) Effective Income Tax Rate Reconciliation, Percent Entity Interactive Data Current Entity Interactive Data Current Operating lease cost Operating Lease, Cost Equity Method Investment, Nonconsolidated Investee [Axis] Equity Method Investment, Nonconsolidated Investee [Axis] Plan Name [Domain] Plan Name [Domain] Reported Value Measurement Reported Value Measurement [Member] Thereafter Lessee, Operating Lease, Liability, to be Paid, After Year Four Lessee, Operating Lease, Liability, to be Paid, After Year Four Nonvested award, unrecognized, period for recognition Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Issuance of common stock upon exercise of stock options (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period SEGMENT AND GEOGRAPHIC INFORMATION Segment Reporting Disclosure [Text Block] U.S. treasury securities US Treasury Securities [Member] Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Amortization expense Amortization of Intangible Assets Depreciation and amortization Depreciation, Depletion and Amortization Amortized Cost Cash, Cash Equivalents And Available-for-sale Debt Securities Amortized Cost Cash, Cash Equivalents And Available-for-sale Debt Securities Amortized Cost Other assets Other Assets, Noncurrent Customer [Domain] Customer [Domain] Entity Central Index Key Entity Central Index Key PEO Name PEO Name Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Vendor financing arrangements, current Vendor Financing Arrangements, Current Vendor Financing Arrangements, Current Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Arrangement Duration Trading Arrangement Duration Deferred revenue, current Contract with Customer, Liability, Current Prepaid expenses and other assets Increase (Decrease) in Prepaid Expense and Other Assets Exercise Price Award Exercise Price Entity Filer Category Entity Filer Category Local Phone Number Local Phone Number Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Nonvested award, excluding options, unrecognized Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount STOCK-BASED COMPENSATION Share-Based Payment Arrangement [Text Block] ASSETS Assets [Abstract] Vendor financing arrangements, noncurrent Long-Term Debt, Excluding Current Maturities Credit Facility [Axis] Credit Facility [Axis] Underlying Security Market Price Change Underlying Security Market Price Change, Percent 2028 Finite-Lived Intangible Asset, Expected Amortization, Year Three Forfeited (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, 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Operating Lease, Liability, Noncurrent Fair Value as of Grant Date Award Grant Date Fair Value Entity Registrant Name Entity Registrant Name Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Related Party Transaction [Line Items] Related Party Transaction [Line Items] Document Quarterly Report Document Quarterly Report Total financial assets Assets, Fair Value Disclosure Carrying value of term loan and vendor financing agreements Long-Term Debt, Fair Value Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Counterparty Name [Domain] Counterparty Name [Domain] 2027 Lessee, Operating Lease, Liability, to be Paid, Year Two Net accretion of 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under employee stock purchase plan (ESPP) Stock Issued During Period, Value, Employee Stock Purchase Plan Other financing activities Proceeds from (Payment for) Other Financing Activity Interest expense Interest Expense, Debt Name Trading Arrangement, Individual Name Award Type [Domain] Award Type [Domain] 2026 Lessee, Operating Lease, Liability, to be Paid, Year One Equity Awards Adjustments Equity Awards Adjustments [Member] Other, net Other Noncash Income (Expense) Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Compensation Amount Outstanding Recovery Compensation Amount Expected dividend yield Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate Statement of Comprehensive Income [Abstract] Paul Alpern June 3, 2025 Plan [Member] Paul Alpern June 3, 2025 Plan Recovery of Erroneously Awarded Compensation 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Recognition Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax Sales and marketing Selling and Marketing Expense 2026 Long-Term Debt, Maturity, Year One Financial Instruments [Domain] Financial Instruments [Domain] Unrealized gains (losses) on available-for-sale securities, net of tax Unrealized gains (losses) on available-for-sale securities, net of tax OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax Income Statement Location [Axis] Statement of Income Location, Balance [Axis] INVESTMENTS Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Variable royalties Royalty [Member] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Developed technology Developed Technology Rights [Member] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Company Selected Measure Name Company Selected Measure Name U.S. government agency securities US Government Debt Securities [Member] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Purchases of available-for-sale securities Payments to Acquire Debt Securities, Available-for-Sale BORROWINGS Debt Disclosure [Text Block] Preferred stock, par value of $0.001 - 10,000,000 shares authorized as of both June 30, 2025 and December 31, 2024; no shares issued and outstanding as of both June 30, 2025 and December 31, 2024 Preferred Stock, Value, Issued Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Accounts payable Accounts Payable, Current Cash payments Operating Lease, Payments Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] All Executive Categories All Executive Categories [Member] Common stock, par value of $0.001 - 300,000,000 shares authorized as of both June 30, 2025 and December 31, 2024; 42,592,418 and 40,724,936 shares issued and outstanding as of June 30, 2025 and December 31, 2024, respectively Common Stock, Value, Issued Total short-term investments Short-Term Investments COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Disclosure [Text Block] Weighted-average shares used in computing per share amounts, diluted (in shares) Weighted-average shares outstanding - diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Segment Information Segment Reporting, Policy [Policy Text Block] Commitments and contingencies (Note 10) Commitments and Contingencies Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Entity Small Business Entity Small Business Sales and marketing Selling and Marketing Expense [Member] Income Tax Disclosure [Abstract] Preferred stock, shares outstanding (in shares) Preferred Stock, Shares Outstanding Document Transition Report Document Transition Report TransChip Technology TransChip Technology [Member] TransChip Technology Ownership percentage Equity Method Investment, Ownership Percentage Schedules of Concentration of Risk Schedules of Concentration of Risk, by Risk Factor [Table Text Block] Numerator: Net Income (Loss) Available to Common Stockholders, Basic [Abstract] Underlying Securities Award Underlying Securities Amount Concentration Risk [Line Items] Concentration Risk [Line Items] Equity Component [Domain] Equity Component [Domain] Document Period End Date Document Period End Date PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Cash and Cash Equivalents [Domain] Cash and Cash Equivalents [Domain] INCOME TAXES Income Tax Disclosure [Text Block] Proceeds from lines of credit Proceeds from Lines of Credit Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Revenue from Contract with Customer [Abstract] Short-term lease cost Short-Term Lease, Cost Document Type Document Type Level 3 Fair Value, Inputs, Level 3 [Member] NET LOSS PER SHARE Earnings Per Share [Text Block] Name Outstanding Recovery, Individual Name 1-2 years Investments, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One Investments, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One Additional paid-in capital Additional Paid in Capital Product and Service [Axis] Product and Service [Axis] Revenue from Contract with Customer Benchmark Revenue from Contract with Customer Benchmark [Member] Total revenue Revenue from Contract with Customer, Excluding Assessed Tax All Individuals All Individuals [Member] Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Fair Value Disclosures [Abstract] Purchases of property and equipment Payments to Acquire Property, Plant, and Equipment Paul Alpern [Member] Paul Alpern Name Forgone Recovery, Individual Name Total current assets Assets, Current Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Cash, cash equivalents and restricted cash at end of period: Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation [Abstract] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Purchase price of common stock, percent Share-Based Compensation Arrangement by Share-Based Payment Award, Purchase Price of Common Stock, Percent Exercises in period, intrinsic value Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value Thereafter Finite-Lived Intangible Asset, Expected Amortization, After Year Four Finite-Lived Intangible Asset, Expected Amortization, After Year Four Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Debt Securities, Held-to-maturity [Table] Debt Securities, 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