Components of Inventory Balances (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Inventory [Line Items]
Spare parts	$ 1,322	$ 1,415
Total inventories	2,885	3,487
Corn
Inventory [Line Items]
Raw materials	124	517
Enzymes And Other Inputs
Inventory [Line Items]
Raw materials	306	283
Nutrients
Inventory [Line Items]
Raw materials	4	5
Ethanol
Inventory [Line Items]
Finished goods	81	172
Isobutanol
Inventory [Line Items]
Finished goods	128	239
Jet Fuels
Inventory [Line Items]
Finished goods	492	514
Distiller's grains
Inventory [Line Items]
Finished goods	20	13
Agri-Energy
Inventory [Line Items]
Work in process	322	220
Gevo
Inventory [Line Items]
Work in process	$ 86	$ 109

Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

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+ References

No definition available.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.6(a))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 330
-SubTopic 10
-Section 35
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=68049868&loc=d3e3927-108312

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6676-107765

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Amount before valuation and LIFO reserves of raw materials expected to be sold, or consumed within one year or operating cycle, if longer.

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Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer.

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Gross amount of components of assembled products that can be sold directly or indirectly through sales of assembled products.

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