Inventories (Tables)

3 Months Ended

Mar. 31, 2018

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

Inventories are valued at the lower of cost or net realizable value, using the first-in-first-out method and consist of the following (in thousands):

	March 31, 2018			December 31, 2017
				(Audited)
Raw materials	$	8,962		$	8,231
Work in progress	876			616
Finished goods	9,944			8,532
Reserve for obsolescence	(1,996		)	(1,304		)
Total	$	17,786		$	16,075