3. Inventories (Tables)

6 Months Ended

Jun. 30, 2016

Inventory Disclosure [Abstract]

Schedule of Inventories

	June 30, 2016		December 31, 2015
Finished goods	$	35,543	$	31,153
LCFS credits		12,830		6,957
Raw materials		8,678		9,891
Work in progress		7,235		11,121
Other		1,642		1,698
Total	$	65,928	$	60,820