Inventories - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended	109 Months Ended
Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014
Inventories [Line Items]
Depreciation	$ 0.5	$ 0.6	$ 1.1	$ 1.1	$ 7.9

Depreciation expense included in cost of goods sold.

No definition available.

Name:	gevo_DepreciationExpenseIncludedInCostOfGoodsSold
Namespace Prefix:	gevo_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration