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Other Operating Expenses (Income), net
12 Months Ended
Dec. 31, 2011
Other Income and Expenses [Abstract]  
Other Operating Expenses (Income), net
9. Other Operating Expenses (Income), net
 
Other operating expenses (income), net consist of the following:
 
Year ended December 31,
 
2011
   
2010
   
2009
  
Loss (gain) on sale of operating assets (a)
$ (83 ) $ 22 $ (45 )
Frozen defined-benefit pension plan expense (income)
    (236 )     398       1,537    
Total other operating expenses (income), net
  $ (319 )   $ 420     $ 1,492    
 
(a)
The gain on sale of operating assets was generated primarily from the sale of used machinery and equipment related to firearms.