Inventories (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Inventory [Line Items]
Raw materials	$ 4,820	$ 5,151
Work in process	1,732	3,045
Finished goods	4,913	5,487
Inventory, gross	11,465	13,683
Less current inventory	(5,595)	(9,257)
Inventory Value Before Reserves	5,870	4,426
Less reserve for slow moving and excess inventory	(4,426)	(2,798)
Inventories, net non-current	$ 1,444	$ 1,628