Inventories (Tables)

9 Months Ended

Sep. 30, 2017

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

	September 30, 2017		December 31, 2016
In thousands
Raw materials	$	1,333	$	1,245
Work-in-progress		767		410
Finished goods		287		238
	$	2,387	$	1,893