Inventories

12 Months Ended

Dec. 31, 2016

Inventories Disclosure [Abstract]

Inventories Disclosure [Text Block]

5. Inventories

Inventories consist of the following:

			December 31,		December 31,
			2016		2015
			(in thousands)
Finished goods		$	9,340	$	10,957
Work in process			823		888
Raw materials			9,792		10,498
	Total	$	19,955	$	22,343