Inventories: (Tables)

9 Months Ended

Sep. 30, 2013

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

Inventories consisted of the following:

	September 30, 2013		December 31, 2012
Raw material	$	18,704	$	20,808
Work in process	4,134		3,013
Finished goods	11,315		12,512
Total	$	34,153	$	36,333