Note 4 - Fair Value Measurements - Quantitative Information about Inputs and Valuation Methodologies Used for Fair Value Measurements Classification (Details)	Sep. 30, 2023	Jul. 31, 2023	Dec. 31, 2022
Measurement Input, Price Volatility [Member] \| Warrant [Member]
Measurement Input	1.15	1.15
Measurement Input, Risk Free Interest Rate [Member] \| Warrant [Member]
Measurement Input	0.046	0.042
Measurement Input, Expected Term [Member] \| Warrant [Member]
Measurement Input	4.8	5
Measurement Input, Expected Dividend Rate [Member] \| Warrant [Member]
Measurement Input	0	0
The 2015 Senhance Acquisition [Member] \| Fair Value, Inputs, Level 3 [Member] \| Milestone Date, Year [Member]
Contingent consideration milestone dates	Dec. 31, 2032		Dec. 31, 2032
The 2015 Senhance Acquisition [Member] \| Fair Value, Inputs, Level 3 [Member] \| Measurement Input, Price Volatility [Member]
Contingent consideration, measurement input	0.375		0.45
The 2015 Senhance Acquisition [Member] \| Fair Value, Inputs, Level 3 [Member] \| Measurement Input, Discount Rate [Member]
Contingent consideration, measurement input	0.11		0.165
The 2015 Senhance Acquisition [Member] \| Fair Value, Inputs, Level 3 [Member] \| Measurement Input, Currency Exchange Rate [Member]
Contingent consideration, measurement input	1.06		1.07

Represents the milestone dates used in the measurement input of contingent consideration liability.

No definition available.

Name:	asxc_BusinessCombinationContingentConsiderationLiabilityMeasurementInputMilestoneDates
Namespace Prefix:	asxc_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	instant

- Definition

Value of input used to measure contingent consideration liability from business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482106/820-10-50-2

+ Details

Name:	us-gaap_BusinessCombinationContingentConsiderationLiabilityMeasurementInput
Namespace Prefix:	us-gaap_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Definition

Value of input used to measure outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur.

+ References

+ Details

Name:	us-gaap_WarrantsAndRightsOutstandingMeasurementInput
Namespace Prefix:	us-gaap_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputPriceVolatilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FairValueByLiabilityClassAxis=us-gaap_WarrantMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputRiskFreeInterestRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputExpectedTermMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputExpectedDividendRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=asxc_The2015SenhanceAcquisitionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MeasurementInputTypeAxis=asxc_MilestoneDateYearMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputDiscountRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MeasurementInputTypeAxis=asxc_MeasurementInputCurrencyExchangeRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: