Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2014

Share Based Compensation [Abstract]

Stock-Based Compensation Expense

The following table sets forth the Company’s stock-based compensation expense (in thousands) for the periods indicated.

	Three Months Ended September 30,				Nine Months Ended September 30,
	2014		2013		2014		2013
Stock options and employee stock purchase plan awards
Research and development	$	96	$	172	$	355	$	507
Selling, general and administrative		225		411		764		1,499
Restricted stock awards
Research and development		90		-		361		-
Selling, general and administrative		448		374		882		1,038
Warrants issued
Selling, general and administrative		-		-		-		39
Non-cash stock-based compensation		859		957		2,362		3,083
Modified stock option awards
Selling, general and administrative		-		-		-		-
Purchase of Class B interests of Gevo Development from CDP for cash
Selling, general and administrative		-		-		-		-
Cash stock-based compensation		-		-		-		-
Total stock-based compensation	$	859	$	957	$	2,362	$	3,083