Inventories (Tables)

3 Months Ended

Mar. 31, 2017

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

Inventories net of reserves are summarized as follows:

	March 31,		December 31,
	2017		2016
Raw Materials	$	3,607	$	4,001
Work in process		1,985		1,860
Finished Goods		3,221		4,143
		8,813		10,004
Less current inventory		(5,098)		(5,064)
		3,715		4,940
Less reserve for slow moving and excess inventory		(2,821)		(3,949)
	$	894	$	991