4. Inventories (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Inventory Disclosure [Abstract]
Raw materials	$ 1,896	$ 499
Work-in-process	2,265	0
Finished goods	8,679	12,200
Inventory gross	12,840	12,699
Reserve for obsolescence	(2,179)	(2,220)
Inventory, net	$ 10,661	$ 10,479