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Stock Purchase (Details) (USD $)
3 Months Ended 9 Months Ended
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Mar. 31, 2011
Sep. 30, 2012
Dec. 31, 2011
Aug. 10, 2011
Stock Purchase (Textual) [Abstract]              
Total transaction value of shares purchased from retiring executive $ 356,000       $ 356,000 $ 356,000  
Stock Purchase (Additional Textual) [Abstract]              
Current market price of purchased shares       $ 5.84      
Authorized share buy back program, number of shares             500,000
Share repurchase period         18 months    
Repurchased shares of common stock 0 62,519 0        
Repurchase of common stock Value   456,000          
Maximum number of shares that may yet be purchased 345,691       345,691    
Executive Officer [Member]
             
Stock Purchase (Textual) [Abstract]              
Shares purchased from a retiring executive       73,741      
Total transaction value of shares purchased from retiring executive       $ 430,647