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Data Type:	xbrli:pureItemType
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Percentage points added to the reference rate to compute the variable rate on the debt instrument when repayment of debt in cash and issuance of stocks.

No definition available.

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Data Type:	xbrli:pureItemType
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Percentage of original issue discount under debt instrument.

No definition available.

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Data Type:	xbrli:pureItemType
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Period Type:	instant

Amount of redemption of debt within one year as percentage of principal amount of the debt.

No definition available.

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Data Type:	xbrli:pureItemType
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Amount of repayment of debt interest in cash as percentage.

No definition available.

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Represents the gross amount received from issuance of debt and warrants.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Term loan and warrant liabilities.

No definition available.

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Namespace Prefix:	gnss_
Data Type:	xbrli:stringItemType
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Exercise price per share or per unit of warrants or rights outstanding.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

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Data Type:	xbrli:sharesItemType
Balance Type:	na
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Face (par) amount of debt instrument at time of issuance.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Value of input used to measure debt instrument, including, but not limited to, convertible and non-convertible debt.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Namespace Prefix:	us-gaap_
Data Type:	xbrli:decimalItemType
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Period Type:	instant

Indicates type of variable interest rate on debt instrument.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
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Namespace Prefix:	us-gaap_
Data Type:	enum2:enumerationSetItemType
Balance Type:	na
Period Type:	duration

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_DebtInstrumentAxis=gnss_TermLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputDiscountRateMember
Namespace Prefix:
Data Type:	na
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Name:	us-gaap_ValuationTechniqueAxis=us-gaap_ValuationTechniqueDiscountedCashFlowMember
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Data Type:	na
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