XML 57 R46.htm IDEA: XBRL DOCUMENT v3.22.2.2

Note 5 - Fair Value Measurements (Details Textual) $ in Thousands, $ in Millions				12 Months Ended
	Oct. 02, 2020 USD ($)	Oct. 02, 2020 CAD ($)	Oct. 02, 2020 CAD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2022 CAD ($)	Sep. 30, 2021 USD ($)
Marketable Securities, Total				$ 0		$ 0
Assets Acquisition of Amika Mobile Corporation [Member]
Asset Purchase Agreement, Deduction From Liability	$ 799	$ 1	$ 1	$ 799	$ 1
Asset Acquisition, Adjustments from Purchase Holdback Liability, Period (Year)	3 years	3 years

X

- Definition

Represents period for adjustments from purchase holdback liability for asset acquisition.

+ References

No definition available.

+ Details

Name:	gnss_AssetAcquisitionAdjustmentsFromPurchaseHoldbackLiabilityPeriod
Namespace Prefix:	gnss_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount of deduction from liabilities under an asset purchase agreement.

+ References

No definition available.

+ Details

Name:	gnss_AssetPurchaseAgreementDeductionFromLiability
Namespace Prefix:	gnss_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount of investment in marketable security.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.4)
-URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878

+ Details

Name:	us-gaap_MarketableSecurities
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

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