Represents the duration of the capital lease agreement.

No definition available.

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Namespace Prefix:	gevo_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of of equal installments in an operating lease for the lessee.

+ References

No definition available.

+ Details

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Namespace Prefix:	gevo_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Total costs accrued as of the balance sheet date for environmental loss contingencies.

+ References

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

+ References

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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of loss contingency liability.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

+ References

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_LossContingenciesByNatureOfContingencyAxis=us-gaap_IndemnificationGuaranteeMember
Namespace Prefix:
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- Details

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Balance Type:
Period Type:

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Namespace Prefix:
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Balance Type:
Period Type:

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Note 12 - Commitments and Contingencies (Details Textual) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Dec. 31, 2012	Jul. 27, 2018 USD ($)	Dec. 31, 2017 USD ($)
Operating Leases, Rent Expense, Net, Total	$ 400	$ 400	$ 900	$ 800
Operating Leases, Future Minimum Payments Due, Total	2,322		2,322
Accrual for Environmental Loss Contingencies, Ending Balance	0		0				$ 0
Indemnification Agreement [Member]
Loss Contingency Accrual, Ending Balance	0		0				0
Equipment Operating Lease and Services Agreement with Shockwave, LLC for a DGS Drying Machine [Member] \| Subsequent Event [Member]
Operating Leases, Future Minimum Payments Due, Total						$ 1,000
Lessee, Operating Lease, Number of Equal Installments						48
Equipment Operating Lease and Services Agreement with Shockwave, LLC for a Corn Fractionation Machine [Member] \| Subsequent Event [Member]
Operating Leases, Future Minimum Payments Due, Total						$ 2,500
Lessee, Operating Lease, Number of Equal Installments						48
Other Noncurrent Liabilities [Member]
Capital Lease Obligations, Total	$ 0		$ 0				$ 0
Assets Held under Capital Leases [Member]
Capital Lease Agreement Period					6 years