Note 9 - Gevo Development (Details Textual) - Gevo Development [Member] - USD ($) $ in Millions	3 Months Ended	12 Months Ended
Mar. 31, 2018	Dec. 31, 2017
Capital Contribution to Subsidiaries	$ 1.3	$ 8.9
Equity Ownership of Wholly Owned Subsidiary	100.00%

Represents the capital contribution to subsidiaries during the period.

No definition available.

Name:	gevo_CapitalContributionToSubsidiaries
Namespace Prefix:	gevo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration