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Inventories:
9 Months Ended
Sep. 30, 2012
Inventory Disclosure [Abstract]  
Inventories [Text Block]
Inventories:
 
Inventories consisted of the following:
 
 
September 30, 2012
 
December 31, 2011
Raw material
$
20,855

 
$
25,227

Work in process
3,095

 
2,901

Finished goods
13,637

 
12,295

Total
$
37,587

 
$
40,423