3. Inventories (Tables)

3 Months Ended

Mar. 31, 2017

Inventory Disclosure [Abstract]

Schedule of Inventories

	March 31, 2017		December 31, 2016
Finished goods	$	32,559	$	33,773
LCFS credits		10,143		10,926
Raw materials		6,380		6,571
Work in progress		7,255		7,092
Other		1,708		1,708
Total	$	58,045	$	60,070