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Fair Value Measurements (Details Textual) (USD $)
In Thousands, unless otherwise specified
 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Dec. 31, 2011
Fair Value Measurements (Textual) [Abstract]      
Non recurring fair value adjustments on loans held for sale $ 0 $ 0  
Fair value of loan commitments and standby letters of credit 0   0
Quoted market prices for the Company's various financial instruments $ 0    
Period of maturity as classifies as short term borrowing 90 days