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Inventories
9 Months Ended
Sep. 30, 2012
Inventory Disclosure [Abstract]  
Inventories
Inventories

Inventories consist of the following:
 
September 30,
2012
 
January 1,
2012
Raw materials and stock parts
$
10,048

 
$
9,042

Work-in-process
1,176

 
1,174

Finished goods
3,483

 
3,489

 
$
14,707

 
$
13,705