Inventories (Tables)

3 Months Ended

Mar. 31, 2016

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

	March 31 2016		December 31 2015
In thousands
Raw materials	$	1,648	$	1,378
Work-in-progress		440		409
Finished goods		156		89
	$	2,244	$	1,876