Business combination consideration transferred working capital adjustment.

No definition available.

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

- Definition

Business combination contingent consideration liability settled.

+ References

No definition available.

+ Details

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- Definition

Increase in additional paid in capital obligation to issue common stock.

+ References

No definition available.

+ Details

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- Definition

Number of shares of equity interests issued or issuable to acquire entity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 805
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (b)(4)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479581/805-30-50-1

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 805
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479907/805-20-50-5

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- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

+ References

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-SubTopic 10
-Section 25
-Paragraph 23
-Publisher FASB
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- Definition

Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (a)
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- Definition

Amount of liability recognized arising from contingent consideration in a business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
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+ Details

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Period Type:	instant

- Definition

This element represents the amount of earnings or loss of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)
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- Definition

This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

+ References

+ Details

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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Period Type:	instant

- Definition

Amount of cash outflow, not made soon after acquisition date of business combination, to settle contingent consideration liability up to amount recognized at acquisition date, including, but not limited to, measurement period adjustment and less amount paid soon after acquisition date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Section 45
-Paragraph 15
-Subparagraph (f)
-SubTopic 10
-Topic 230
-Publisher FASB
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- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

+ Details

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- Definition

Number of shares of stock issued during the period pursuant to acquisitions.

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- Definition

Value of stock issued pursuant to acquisitions during the period.

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- Details

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- Details

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Business Combination - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended					12 Months Ended		15 Months Ended
	Oct. 04, 2023	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024
Business Acquisition [Line Items]
Share price		$ 3.56					$ 3.56		$ 3.56
Stock issued during period, value, acquisitions							$ 3,265
Payment for contingent consideration liability, financing activities							219	$ 0
Business combination, contingent consideration arrangements, change in amount of contingent consideration, liability							(16)	$ 0
Additional Paid-in Capital [Member]
Business Acquisition [Line Items]
Stock issued during period, value, acquisitions							3,265
Evertel Technologies, LLC [Member]
Business Acquisition [Line Items]
Business acquisition, equity interest issued or issuable, number of shares (in shares)	986,486
Share price	$ 1.95
Increase in additional paid-in capital, obligation to issue common stock			$ 158
Business combination, contingent consideration, liability		$ 0					0		$ 0
Business Combination, Consideration Transferred, Working Capital Adjustment	$ (15)			$ 15
Business Combination, Acquisition Related Costs		$ 20	18	62	$ 12	$ 39			$ 151
Finite-Lived Intangible Asset, Useful Life	6 years 9 months 18 days
Business Combination Contingent Consideration Liability Settled							874
Payment for contingent consideration liability, financing activities			$ 219				219
Business combination, contingent consideration arrangements, change in amount of contingent consideration, liability							16
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual							994
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual							$ 717
Evertel Technologies, LLC [Member] \| Holdback liability
Business Acquisition [Line Items]
Business combination, contingent consideration, liability	$ 230
Evertel Technologies, LLC [Member] \| Contingent Consideration Liability [Member]
Business Acquisition [Line Items]
Stock issued during period, shares, acquisitions			236,343				236,343
Evertel Technologies, LLC [Member] \| Additional Paid-in Capital [Member]
Business Acquisition [Line Items]
Stock issued during period, value, acquisitions	1,924
Increase in additional paid-in capital, obligation to issue common stock	$ 527			$ 158
Evertel Technologies, LLC [Member] \| Additional Paid-in Capital [Member] \| Contingent Consideration Liability [Member]
Business Acquisition [Line Items]
Stock issued during period, value, acquisitions							$ 656