Inventories (Tables)

12 Months Ended

Dec. 31, 2015

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

Inventories, net of reserves, are summarized as follows:

	December 31,
	2015		2014
Raw materials	$	4,820	$	5,151
Work in process		1,732		3,045
Finished goods		4,913		5,487
		11,465		13,683
Less current inventory		(5,595)		(9,257)
		5,870		4,426
Less reserve for slow moving and excess inventory		(4,426)		(2,798)
	$	1,444	$	1,628