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Inventories:
6 Months Ended
Jun. 30, 2011
Inventory Disclosure [Abstract]  
Inventories [Text Block]
Inventories:
 
Inventories consisted of the following:
 
 
June 30, 2011
 
December 31, 2010
Raw material
$
26,270

 
$
22,805

Work in process
4,224

 
3,806

Finished goods
18,878

 
17,445

Total
$
49,372

 
$
44,056