Inventories: (Tables)

6 Months Ended

Jun. 30, 2014

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

Inventories consisted of the following:

	June 30, 2014		December 31, 2013
Raw material	$	21,304	$	21,867
Work in process	4,476		2,749
Finished goods	12,039		9,835
Total	$	37,819	$	34,451