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Subsequent Events (Details) (Subsequent Event [Member], USD $)
 1 Months Ended 0 Months Ended
Jan. 31, 2013
Fenco Inventory purchase agreement consent [Member]
Jan. 31, 2013
Stock Repurchase Agreement [Member]
Jan. 31, 2013
Option Purchase Agreement [Member]
Subsequent Event [Line Items]      
Number of shares repurchased   33,827  
Repurchase of common stock   $ 200,000  
Number of shares originally purchasable under stock options to be repurchased (in shares)     101,500
Net purchase price of employee stock options to be repurchased     454,675
Average cost per share (in dollars per share)     $ 6.87
Number of consecutive trading days     5 days
Purchase price discount percentage (in hundredths)     5.00%
Purchase agreement amount $ 2,400,000