Inventories (Tables)

12 Months Ended

Dec. 31, 2015

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

Inventories consist of the following at December 31 (in thousands):

	2015		2014
Raw materials	$	7,653	$	5,747
Work in progress		668		1,257
Finished goods		2,548		2,582
Total inventories	$	10,869	$	9,586

Schedule of Inventory, Noncurrent [Table Text Block]

The classification of our inventories on our consolidated balance sheets is as follows (in thousands):

	2015		2014
Current	$	10,199	$	9,063
Non-current		670		523
Total inventories	$	10,869	$	9,586