4. Inventories (Tables)

9 Months Ended

Sep. 30, 2016

Inventory Disclosure [Abstract]

Schedule of Inventory

		September 30,		December 31,
		2016		2015
Raw materials	$	7,139	$	6,310
Work in progress		1,843		4,168
Finished goods		3,825		3,552
Supplies		775		784
Total Inventories		13,582		14,814
Inventory reserve		(429)		(826)
Net Inventories	$	13,153	$	13,988