Note 4 - Inventories (Tables)

3 Months Ended

Mar. 31, 2018

Notes Tables

Schedule of Inventory, Current [Table Text Block]

	March 31,		December 31,
	2018		2017
Raw materials
Corn	$	33	$	189
Enzymes and other inputs		172		202
Nutrients		5		5
Finished goods
Ethanol		385		222
Isobutanol		1,010		1,122
Jet Fuels, Isooctane and Isooctene		908		524
Distiller's grains		23		59
Work in process - Agri-Energy		226		197
Work in process - Gevo		145		437
Spare parts		1,449		1,405
Total inventories	$	4,356	$	4,362