Document And Entity Information Note To Financial Statement Details Textual Significant Accounting Policies Note 2 - Summary of Significant Accounting Policies Note 3 - Fair Value Note 4 - Investments Note 5 - Inventories Note 6 - Intellectual Property Note 9 - Equity Offerings Long-Term Liabilities: Note 10 - Basic and Diluted Net Loss Per Share Note 11 - Commitments and Contingencies Income Tax Disclosure [Text Block] Note 2 - Summary of Significant Accounting Policies - Estimated Useful Lives of Assets (Details) Unrealized loss on available-for-sale investments Note 2 - Summary of Significant Accounting Policies - Revenue Disaggregated by Type and Geography (Details) Note 3 - Fair Value - Summary of Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) Note 3 - Fair Value - Quantitative Information about Inputs and Valuation Methodologies Used for Fair Value Measurements Classification (Details) us-gaap_LiabilitiesCurrent Total Current Liabilities Note 3 - Fair Value - Summary of Change in Fair Value for Warrants and Contingent Consideration (Details) Note 4 - Investments - Summary of Investment Securities (Details) Note 5 - Inventories - Components of Inventories (Details) Note 6 - Intellectual Property - Intellectual Property (Details) Note 9 - Equity Offerings - Summary of Sales Under Offering (Details) Note 10 - Basic and Diluted Net Loss per Share - Antidilutive Securities Excluded from Computation of Earnings Per Share (Details) Note 11 - Commitments and Contingencies - Minimum Lease Payments (Details) Notes To Financial Statements Notes To Financial Statements [Abstract] Foreign currency translation (loss) gain us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt Proceeds from Sale of Debt Securities, Available-for-sale Corporate Debt Securities [Member] Notes payable - current portion, net of debt discount Other comprehensive loss us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt Purchase of available-for-sale investments Contingent consideration, measurement input Financial Instruments [Domain] Deferred revenue Financial Instrument [Axis] us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number, Ending Balance (in shares) Accrued expenses Mature in less than one year, fair value us-gaap_AccountsPayableCurrent Accounts payable Mature in less than one year, amortized cost us-gaap_PolicyTextBlockAbstract Accounting Policies Exchange of common stock for Series B Warrants us-gaap_PaymentsToAcquirePropertyPlantAndEquipment Purchase of property and equipment asxc_ContractualObligationToBePaidAfterYearThree Contractual Obligation, to be Paid, after Year Three Amount of contractual obligation to be paid after third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Current Liabilities: Developed Technology Rights [Member] Operating lease liabilities Product [Member] us-gaap_Assets Assets, Total Total Assets Patents [Member] Technology-Based Intangible Assets [Member] Intellectual Property [Member] us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic Net loss attributable to common stockholders us-gaap_OperatingLeaseLeaseIncome Operating Lease, Lease Income, Total Net deferred tax assets Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation Return of common stock to pay withholding taxes on restricted stock us-gaap_PreferredStockDividendsIncomeStatementImpact Preferred Stock Dividends, Income Statement Impact Deemed dividend related to beneficial conversion feature of preferred stock us-gaap_ConvertiblePreferredStockConvertedToOtherSecurities Convertible Preferred Stock Converted to Other Securities Deemed dividend related to conversion of preferred stock into common stock Restricted cash us-gaap_RestrictedCashAndCashEquivalents Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block] Net loss Net loss us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization Finite-Lived Intangible Assets, Accumulated Amortization Intellectual property, net Restricted Stock Units (RSUs) [Member] Finite-Lived Intangible Assets, Gross Share-based Payment Arrangement, Option [Member] Warrant [Member] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Antidilutive Securities [Axis] Antidilutive Securities, Name [Domain] Commitments and Contingencies Disclosure [Text Block] Property and equipment, net Investing Activities: Fair Value Debt Securities, Available-for-sale, Total Total, fair value Earnings Per Share [Text Block] us-gaap_IncreaseDecreaseInAccruedLiabilities Accrued expenses us-gaap_IncomeTaxExpenseBenefit Income tax (expense) benefit SWITZERLAND Accounts payable us-gaap_OperatingExpenses Total Operating Expenses us-gaap_DebtInstrumentTerm Debt Instrument, Term (Year) us-gaap_RestrictedCashAndCashEquivalentsNoncurrent Restricted Cash and Cash Equivalents, Noncurrent, Total General and administrative us-gaap_DebtInstrumentDecreaseForgiveness Debt Instrument, Decrease, Forgiveness Cash and cash equivalents us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities Other long-term liabilities us-gaap_AllocatedShareBasedCompensationExpense Share-based Payment Arrangement, Expense us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings Change in fair value Amendment Flag Warrant liabilities Warrant liabilities Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price. 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ITALY us-gaap_IncreaseDecreaseInOtherOperatingAssets Other current and long-term assets Current Fiscal Year End Date us-gaap_DebtInstrumentInterestRateStatedPercentage Debt Instrument, Interest Rate, Stated Percentage Exchange of shares for Series B Warrants (in shares) Number of shares issued in exchange for warrants during period. Exercise of stock options and warrants (in shares) Stock Issued During Period Shares Stock Options and Warrants Exercised (in shares) Number of shares issued for the stock options and warrants exercised during period. us-gaap_DebtSecuritiesAvailableForSaleRealizedGainLoss Debt Securities, Available-for-sale, Realized Gain (Loss), Total us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent Operating Lease, Weighted Average Discount Rate, Percent Proceeds from notes payable, net of issuance costs The cash inflow from issuance of debt and warrants, net of issuance costs. Document Fiscal Period Focus us-gaap_OperatingLeaseCost Operating Lease, Cost Proceeds from exercise of stock options and warrants The cash inflow from stock options and warrants exercised. Document Fiscal Year Focus Consolidation, Policy [Policy Text Block] Transfer of inventories to property and equipment Amount of inventory transferred to property and equipment. Document Period End Date Lease liabilities arising from obtaining right-of-use assets us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1 Operating Lease, Weighted Average Remaining Lease Term (Year) us-gaap_IncreaseDecreaseInPrepaidExpense Prepaid expenses Entity File Number asxc_WorkingCapital Working Capital The capital of a business which is used in its day-to-day trading operations, calculated as the current assets minus the current liabilities. Entity Emerging Growth Company Proceeds from issuance of common stock, preferred stock and warrants under 2020 financing, net of issuance costs Proceeds from Issuance of Equity Net Net proceeds The cash inflow from issuance of equity, net of issuance cost. Document Type Gain on extinguishment of debt Gain (Loss) on Extinguishment of Debt, Total Gain on extinguishment of debt Transfer of in-process research and development to intellectual property Value of in-process research and development transferred to intellectual property. Entity Small Business Entity Shell Company Document Information [Line Items] Seven Customers [Member] Represents seven major customers of the company. Document Information [Table] Service [Member] Nine Customers [Member] Represents the nine major customers of the company. Balance us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue Balance Balance Paycheck Protection Program CARES Act [Member] Represents loan designed to provide funds for small businesses to keep their employees on the payroll. us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements Exercise of warrants Entity Filer Category Debt Instrument [Axis] Entity Current Reporting Status asxc_NumberOfMajorCustomers Number of Major Customers Represents the number of major customers accounting for 10% or more of the specified concentration risk benchmark, which includes, but not limited to, sales revenue, accounts receivable, etc. Debt Instrument, Name [Domain] us-gaap_ImpairmentOfIntangibleAssetsFinitelived Impairment of Intangible Assets, Finite-lived Two Customers [Member] Represents the two major customers of the company. asxc_PeriodOfServiceSaleArrangement Period Of Service Sale Arrangement (Year) Represents the period of service sale arrangement. Senhance Surgical Robotic System Acquisition[Member] Represents Senhance Surgical Robotic System acquisition. us-gaap_ConcentrationRiskPercentage1 Concentration Risk, Percentage us-gaap_IncreaseDecreaseInAccountsReceivable Accounts receivable Stock-based compensation Entity Tax Identification Number asxc_PeriodOfServiceSaleArrangementAtStatedServicePrice Period of Service Sale Arrangement at Stated Service Price (Year) Represents the period of service sale arrangement at stated service price. Entity Central Index Key Entity Registrant Name Liability Class [Axis] Substantial Doubt about Going Concern [Policy Text Block] Disclosure of accounting policy for substantial doubt about going concern. Fair Value by Liability Class [Domain] Contingent Consideration [Policy Text Block] Disclosure accounting policy for contingent consideration. Entity [Domain] Customer Concentration Risk [Member] Legal Entity [Axis] us-gaap_TreasuryStockRetiredCostMethodAmount Cancellation of treasury stock Entity Address, Address Line One Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Systems [Member] Represents the systems, a product of the company. Amortization of intangible assets Instruments and Accessories [Member] Represents instruments and accessories, a type of products of the company. Entity Address, City or Town Geographic Concentration Risk [Member] Entity Address, Postal Zip Code Warrant Liabilities [Policy Text Block] Disclosure of accounting policy warrant liabilities. Schedule of Property Plant and Equipment Useful Life [Table Text Block] Tabular disclosure of the useful life of property, plant and equipment during the reporting period. Entity Address, State or Province Concentration Risk Type [Axis] Machinery, Manufacturing and Demonstration Equipment [Member] Represents machinery, manufacturing and demonstration equipment. Concentration Risk Type [Domain] us-gaap_AllowanceForDoubtfulAccountsReceivable Accounts Receivable, Allowance for Credit Loss, Ending Balance asxc_NumberOfUnitsSold Number of Units Sold (in shares) The number of units sold during period, each consisting of approximately 0.077 shares of the Company's common stock, a Series A warrant to purchase approximately 0.077 shares of common stock with an exercise price of $13.00 per share (the "Series A Warrants"), and a Series B warrant to purchase approximately 0.058 shares of common stock with an exercise price of $13.00 per share (the "Series B Warrants," together with the Series A Warrants, the "Warrants"), at an offering price of $1.00 per Unit. Entity Common Stock, Shares Outstanding asxc_BusinessCombinationContingentConsiderationArrangementsTargetRevenue Business Combination Contingent Consideration Arrangements Target Revenue The target revenue to be achieved pursuant to the business combination agreement. Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Revenue Benchmark [Member] Contingent Consideration [Member] Represents the contingent consideration. Accounts Receivable [Member] asxc_NumberOfSharesInEachUnit Number of Shares in Each Unit (in shares) The number of shares in each unit. Series A Warrant [Member] Represents the series A warrant. Series B Warrant [Member] Represents the series B warrant. Investments [Domain] us-gaap_IncreaseDecreaseInInventories Inventories Trading Symbol Assets, Total [Member] Finite-Lived Intangible Assets, Foreign Currency Translation Impact The accumulated impact of foreign currency translation for finite-lived intangible assets. Current portion asxc_FairValueMeasurementWithUnobservableInputsRecurringBasisLiabilityValueCurrent Current portion of liability measurement with unobservable inputs on recurring basis. Concentration Risk Benchmark [Axis] Long-term portion asxc_FairValueMeasurementWithUnobservableInputsRecurringBasisLiabilityValueNonCurrent Noncurrent portion of liability measurement with unobservable inputs on recurring basis. Concentration Risk Benchmark [Domain] asxc_InventoryCurrentAndNoncurrentNet Total inventories Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer. Investment Type [Axis] Conversion of preferred stock to common stock Conversion of preferred stock to common stock (in shares) Stock Issued During Period, Shares, Conversion of Convertible Securities (in shares) Local Phone Number us-gaap_TableTextBlock Notes Tables Series C Warrants [Member] Represents the series C warrants. Series D Warrants [Member] Represents the series D warrants. Award of restricted stock units (in shares) Award of restricted stock units Class A Units [Member] Represents the class A units. Class B Units [Member] Represents the class B units. Schedule of Sales Under Sales Agency Agreement [Table Text Block] Schedule of sales under sales agency agreement. Warrants, measurement input (Year) ATM Offering [Member] Represents information regarding one or more ATM offerings. Sales and marketing Collaborative Arrangement and Arrangement Other than Collaborative [Domain] Total shares of common stock sold (in shares) Issuance of common stock, net of issuance costs (in shares) Stock Issued During Period, Shares, New Issues (in shares) Raw materials us-gaap_InventoryRawMaterialsNetOfReserves us-gaap_LiabilitiesAndStockholdersEquity Total Liabilities and Stockholders' Equity Finished goods us-gaap_InventoryFinishedGoodsNetOfReserves UNITED STATES Issuance of common stock, net of issuance costs Stock Issued During Period, Value, New Issues Accumulated deficit Retained Earnings (Accumulated Deficit), Ending Balance Research and development Accumulated other comprehensive income Measurement Input, Discount Rate [Member] Debt Disclosure [Text Block] us-gaap_InterestExpense Interest expense Measurement Input, Price Volatility [Member] Changes in operating assets and liabilities: Measurement Input, Risk Free Interest Rate [Member] us-gaap_DisclosureTextBlockAbstract Notes to Financial Statements Inventory Disclosure [Text Block] Noncurrent operating lease liabilities Operating Lease, Liability, Noncurrent Subsequent Event [Member] Schedule of Inventory, Current [Table Text Block] Measurement Input, Expected Term [Member] Restricted cash Present value of future minimum lease payments us-gaap_OperatingLeaseLiability Operating Lease, Liability, Total Deferred tax benefit Operating lease liabilities - current portion Operating Lease, Liability, Current Subsequent Event Type [Axis] Subsequent Event Type [Domain] Measurement Input, Expected Dividend Payment [Member] Subsequent Events [Text Block] Operating lease right-of-use assets, net Operating Lease, Right-of-Use Asset us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue Total minimum lease payments us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount Less: Amount of lease payments representing interest us-gaap_DeferredIncomeTaxExpenseBenefit Deferred Income Tax Expense (Benefit), Total 2024 us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree Measurement Input Type [Axis] 2025 us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour Measurement Input Type [Domain] 2022 us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths Debt Securities, Available-for-sale [Table Text Block] 2023 us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo Segment Reporting, Policy [Policy Text Block] Lessor, Leases [Policy Text Block] Change in fair value of warrant liabilities Fair Value Adjustment of Warrants Change in fair value of warrant liabilities Lessee, Operating Lease, Liability, Maturity [Table Text Block] Other long-term assets us-gaap_ShareBasedCompensation Stock-based compensation us-gaap_FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1 Finite-Lived Intangible Assets, Remaining Amortization Period (Year) Remainder of 2021 us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear us-gaap_FiniteLivedIntangibleAssetUsefulLife Finite-Lived Intangible Asset, Useful Life (Year) Comprehensive Income, Policy [Policy Text Block] Income Tax, Policy [Policy Text Block] Total assets measured at fair value us-gaap_AssetsFairValueDisclosure us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments Amortization of discounts and premiums on investments, net Schedule of Finite-Lived Intangible Assets [Table Text Block] us-gaap_LesseeOperatingLeaseTermOfContract Lessee, Operating Lease, Term of Contract (Month) Research and Development Expense, Policy [Policy Text Block] Long-term investments Long-term investments, available-for-sale us-gaap_ConversionOfStockAmountConverted1 Conversion of preferred stock to common stock Depreciation Total liabilities measured at fair value us-gaap_LiabilitiesFairValueDisclosure Return of common stock to pay withholding taxes on restricted stock (in shares) Intangible Assets Disclosure [Text Block] Average price per share (in dollars per share) us-gaap_SharesIssuedPricePerShare Shares Issued, Price Per Share (in dollars per share) Long-term portion Inventories, net of current portion us-gaap_AssetsCurrent Total Current Assets Cash and cash equivalents us-gaap_CashAndCashEquivalentsFairValueDisclosure Share-based Payment Arrangement [Policy Text Block] Stockholders' Equity Note Disclosure [Text Block] Change in fair value of contingent consideration Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] Common stock $0.001 par value, 750,000,000 shares authorized at September 30, 2021 and December 31, 2020; 234,370,083 and 116,231,072 shares issued and outstanding at September 30, 2021 and December 31, 2020, respectively Adjustments to reconcile net loss to net cash and cash equivalents used in operating activities: Common stock, shares authorized (in shares) Commercial Paper [Member] Common stock, shares issued (in shares) us-gaap_LesseeOperatingLeaseDiscountRate Lessee, Operating Lease, Discount Rate Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share (in dollars per share) Asia [Member] Statistical Measurement [Domain] us-gaap_OperatingLeasePayments Operating Lease, Payments Maximum [Member] Supplemental Schedule of Non-cash Investing and Financing Activities: Minimum [Member] Product and Service [Axis] Other current assets Product and Service [Domain] Statistical Measurement [Axis] Debt, Policy [Policy Text Block] us-gaap_ContractWithCustomerAssetNetCurrent Contract with Customer, Asset, after Allowance for Credit Loss, Current, Total Preferred stock, $0.01 par value, 25,000,000 shares authorized, no shares issued and outstanding at September 30, 2021 and December 31, 2020 Preferred stock, shares issued (in shares) Prepaid expenses Geographical [Axis] Goodwill and Intangible Assets, Policy [Policy Text Block] Geographical [Domain] Europe [Member] Preferred stock, shares authorized (in shares) Current portion Inventories Preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share (in dollars per share) Fair Value, Inputs, Level 3 [Member] Fair Value Hierarchy and NAV [Domain] Customer [Axis] Customer [Domain] Fair Value, Inputs, Level 1 [Member] Fair Value, Inputs, Level 2 [Member] Fair Value Hierarchy and NAV [Axis] Property and equipment, estimated useful lives (Year) Operating Activities: Revenue [Policy Text Block] Statement [Line Items] us-gaap_NumberOfOperatingSegments Number of Operating Segments Furniture and Fixtures [Member] Accounts receivable, net Revenue: Additional paid-in capital AOCI Attributable to Parent [Member] Stockholders' Equity: Leasehold Improvements [Member] Short-term investments Short-term investments, available-for-sale Property, Plant and Equipment, Policy [Policy Text Block] Other income (expense), net Long-Lived Tangible Asset [Axis] us-gaap_NonoperatingIncomeExpense Total Other Income (Expense), net Long-Lived Tangible Asset [Domain] Registered Direct Offering [Member] Represents information regarding a registered direct offering. Current Assets: Long-lived Assets [Member] Represents information regarding long-lived assets. Fair Value Disclosures [Text Block] Risk And Uncertainties, Policy [Policy Text Block] Disclosure of accounting policy for risk and uncertainties for the reporting period. us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents Cash, cash equivalents and restricted cash, beginning of period Cash, cash equivalents and restricted cash, end of period Inventory, Policy [Policy Text Block] Interest income us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect Net increase in cash, cash equivalents and restricted cash us-gaap_Liabilities Total Liabilities us-gaap_NetCashProvidedByUsedInFinancingActivities Net cash and cash equivalents provided by financing activities Commitments and Contingencies (Note 11) Sale of Stock [Axis] Sale of Stock [Domain] Effect of exchange rate changes on cash and cash equivalents us-gaap_OperatingIncomeLoss Operating Loss us-gaap_ContractWithCustomerLiabilityRevenueRecognized Contract with Customer, Liability, Revenue Recognized us-gaap_NetCashProvidedByUsedInOperatingActivities Net cash and cash equivalents used in operating activities Other Income (Expense) us-gaap_NetCashProvidedByUsedInInvestingActivities Net cash and cash equivalents used in investing activities asxc_IncreaseDecreaseInOperatingLeaseRightOfUseAssets Operating lease right-of-use assets The amount of increase (decrease) in right-of-use assets. Milestone Date, Year [Member] Represents information regarding the year of the milestone dates. us-gaap_GrossProfit Gross loss Cost of revenue Write down of inventory Inventory Write-down Four Customers [Member] Represents four customers. The 2021 ATM Offering [Member] Represents the 2021 at the market offering. us-gaap_PaymentForContingentConsiderationLiabilityFinancingActivities Payment of contingent consideration Commissions earned by Cantor us-gaap_PaymentsOfStockIssuanceCosts Concentration Risk, Credit Risk, Policy [Policy Text Block] us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation Taxes paid related to net share settlement of vesting of restricted stock units The 2019 ATM Offering [Member] Represents information pertaining to 2019 ATM Offering. Asensus Surgical Italia S.r.L. [Member] Represents information regarding Asensus Surgical Italia S.r.l. The 2020 ATM Offering [Member] Represents information pertaining to the 2020 ATM Offering. License and Supply Agreement [Member] Represents license and supply agreement. Cost of revenue: Gross proceeds us-gaap_ProceedsFromIssuanceOrSaleOfEquity Proceeds from Issuance or Sale of Equity, Total Operating Expenses: Cost of Goods and Service [Policy Text Block] Scenario [Domain] us-gaap_ProceedsFromWarrantExercises Proceeds from Warrant Exercises Forecast [Member] Retained Earnings [Member] Revenue us-gaap_ProceedsFromIssuanceOfCommonStock Proceeds from Issuance of Common Stock Treasury Stock [Member] Scenario [Axis] Additional Paid-in Capital [Member] Common Stock [Member] Preferred Stock [Member] Equity Components [Axis] Equity Component [Domain] us-gaap_CurrentIncomeTaxExpenseBenefit Current Income Tax Expense (Benefit), Total us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1 Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period (Year) us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) us-gaap_RevenueRemainingPerformanceObligation Revenue, Remaining Performance Obligation, Amount Class of Warrant or Right [Axis] Class of Warrant or Right [Domain] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares) us-gaap_ClassOfWarrantOrRightOutstanding Class of Warrant or Right, Outstanding (in shares) us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest Loss before income taxes us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) Disaggregation of Revenue [Table Text Block] Computer Equipment [Member] Document Quarterly Report Receivable [Policy Text Block] Entity Incorporation, State or Country Code us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate Unrecognized Tax Benefits that Would Impact Effective Tax Rate Accounting Policies [Abstract] Significant Accounting Policies [Text Block] Document Transition Report Basis of Accounting, Policy [Policy Text Block] Entity Interactive Data Current Security Exchange Name Title of 12(b) Security us-gaap_ProceedsFromIssuanceOfLongTermDebt Proceeds from Issuance of Long-term Debt, Total Collaborative Arrangement and Arrangement Other than Collaborative [Axis] us-gaap_ContractualObligationFutureMinimumPaymentsDueRemainderOfFiscalYear Contractual Obligation, to be Paid, Remainder of Fiscal Year Weighted average number of shares used in computing net loss per common share - basic and diluted (in shares) us-gaap_ContractualObligationDueInNextTwelveMonths Contractual Obligation, to be Paid, Year One Share price (in dollars per share) us-gaap_ContractualObligationDueInSecondYear Contractual Obligation, to be Paid, Year Two Antidilutive Securities Excluded from Computation of Earnings Per Share (in shares) us-gaap_ContractualObligationDueInThirdYear Contractual Obligation, to be Paid, Year Three Non-US [Member] Net loss per common share attributable to common stockholders - basic and diluted (in dollars per share) Operating Lease Assets [Member] Related to operating lease assets. Statement [Table] Statement of Financial Position [Abstract] us-gaap_EffectiveIncomeTaxRateContinuingOperations Effective Income Tax Rate Reconciliation, Percent, Total asxc_StockOfferingAgreementMaximumShareValue Stock Offering Agreement, Maximum Share Value The maximum share value issuable under a stock offering agreement. Business Acquisition [Axis] asxc_StockOfferingAgreementCommissionPercent Stock Offering Agreement, Commission, Percent The percent commission payable under a stock offering agreement. Business Acquisition, Acquiree [Domain] Statement of Cash Flows [Abstract] Lease Contractual Term [Domain] Statement of Stockholders' Equity [Abstract] Lease Contractual Term [Axis] Income Statement [Abstract] Contingent consideration us-gaap_BusinessCombinationContingentConsiderationLiability Business Combination, Contingent Consideration, Liability, Total Lease Agreement for Research, Development, and Demonstration Space in Milan, Italy [Member] Represents information regarding lease agreement for research, development, and demonstration space in Milan, Italy. asxc_LesseeOperatingLeaseOptionToExtendTerm Lessee, Operating Lease, Option to Extend, Term (Year) Description of term of option to extend lessee's operating lease. asxc_LesseeOperatingLeasePaymentOfQuarterlyPaymentsPeriodFollowingCommencement Lessee, Operating Lease, Payment of Quarterly Payments, Period Following Commencement (Month) Represents the period following the commencement of a lessee's operating lease at which point the quarterly payments begin. asxc_LesseeOperatingLeasePeriodAfterWhichLeaseIsSubjectToAnnualEscalations Lessee, Operating Lease, Period After which Lease is Subject to Annual Escalations (Year) Represents the period after which a lessee's operating lease is subject to annual escalations. us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax, Total Mature in one to two years, fair value Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), maturing in next fiscal year to second fiscal year following current fiscal year. Mature in one to two years, amortized cost Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), maturing in next fiscal year to second fiscal year following current fiscal year. Contingent consideration asxc_IncreaseDecreaseInTaxCreditReceivable Employee retention tax credit receivable Amount of increase (decrease) during the period in tax credit receivable. Fair Value, Assets Measured on Recurring Basis [Table Text Block] asxc_OperatingLeaseExpenseExpectedOverInitialLeaseTerm Operating Lease, Expense Expected Over Initial Lease Term Amount of operating lease expense expected to be recognized during the initial lease term, not including such additional items as building operating costs, ad valorem property taxes, and value-added tax. Financing Activities: Employee retention tax credit Other Income, Employer Retention Tax Credit Represents the amount recorded in other income in connection with the Employer Retention Tax Credit under the CARES Act. Employee retention tax credit receivable Represents the amount of employer retention tax credit receivable as of the specified date. Cash and Cash Equivalents, Restricted Cash, and Investments, Policy [Policy Text Block] Disclosure of accounting policy for cash and cash equivalents, restricted cash, and investments. Employer Retention Tax Credit, Policy [Policy Text Block] Disclosure of accounting policy related to the Employer Retention Tax Credit under the CARES Act. Reclass of warrant liability to common stock and additional paid-in-capital Amount of warrant liability reclassified to common stock and additional paid-in-capital. One Customer [Member] Represents one of the major customers. Proceeds from issuance of common stock, net of issuance costs Proceeds from Issuance of Common Stock, Net The cash inflow from issuance of common stock, net of issuance cost. asxc_StockIssuedDuringPeriodSharesWarrantsExercised Stock Issued During Period, Shares, Warrants Exercised (in shares) Number of share issued for warrants exercised during the current period. Thereafter asxc_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour Amount of lessee's undiscounted obligation for lease payment for operating lease due after fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). asxc_PropertyPlantAndEquipmentIncludingPurchasedSoftwareImpairmentCharges Property, Plant and Equipment, Including Purchased Software, Impairment Charges Represents the amount of impairment charges associated with property, plant and equipment (including purchased software) during the period. asxc_BusinessCombinationContingentConsiderationLiabilityRelatedMilestone Business Combination, Contingent Consideration, Liability, Related Milestone Represents the milestone amount associated with the specified liability arising from contingent consideration in a business combination. asxc_CashCashEquivalentsShorttermAndLongtermInvestmentsExcludingRestrictedCash Cash, Cash Equivalents, Short-term and Long-term Investments, Excluding Restricted Cash Represents the amount of cash, cash equivalents, short-term and long-term investments, excluding restricted cash, as of the specified date. Series A Preferred Stock [Member] Purchased Software [Member] Represents information regarding purchased software. us-gaap_StockholdersEquity Total Stockholders' Equity Balance Balance Class of Stock [Axis] Class of Stock [Domain] Notes payable, less current portion us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax Unrealized Loss Unrealized Gain Amortized Cost Total, amortized cost