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Inventories:
6 Months Ended
Jun. 30, 2012
Inventory Disclosure [Abstract]  
Inventories [Text Block]
Inventories:
 
Inventories consisted of the following:
 
 
June 30, 2012
 
December 31, 2011
Raw material
$
20,651

 
$
25,227

Work in process
3,526

 
2,901

Finished goods
12,358

 
12,295

Total
$
36,535

 
$
40,423