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Commitments And Contingencies (Details) (USD $)
 1 Months Ended 12 Months Ended
Feb. 28, 2010
Dec. 31, 2011
Dec. 31, 2010
Line of credit facility, maximum borrowing capacity   $ 8,000,000  
Interest percentage over LIBOR rate   0.90%  
Line of credit, amount outstanding   0  
Percentage purchase of outstanding IRB bonds   100.00%  
Investment in and outstanding debt for industrial revenue bond   9,733,000 9,733,000
Principal amount of outstanding debt instrument due in subsequent period   6,579,000  
Total maximum volume of niche type fasteners purchased from all suppliers over the purported term of the alleged exclusivity arrangement with the California fastener supplier 1,000,000    
Litigation claim amount by the California fastener supplier 180,000,000    
Government And Agency Securities [Member]
      
Total balance of government and agency secuirities held as collateral for the benefit of our insurance carrier   $ 26,845,000