Inventories: (Tables)

9 Months Ended

Sep. 30, 2015

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

Inventories consisted of the following:

	September 30, 2015		December 31, 2014
Raw material	$	23,559	$	23,006
Work in process	5,233		3,546
Finished goods	11,889		10,381
Total	$	40,681	$	36,933