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Inventories:
6 Months Ended
Jun. 30, 2013
Inventory Disclosure [Abstract]  
Inventories [Text Block]
Inventories:
 
Inventories consisted of the following:
 
 
June 30, 2013
 
December 31, 2012
Raw material
$
18,160

 
$
20,808

Work in process
4,412

 
3,013

Finished goods
13,709

 
12,512

Total
$
36,281

 
$
36,333