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Intangible Assets (Details 2) (USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Net carrying amount of core deposit intangible assets        
Balance at beginning of period     $ 542,746  
Amortization     206,036 226,713
Balance at end of period 336,710   336,710  
Core deposit intangibles [Member]
       
Net carrying amount of core deposit intangible assets        
Balance at beginning of period 438,721 859,483 542,746 977,509
Additions            
Amortization (102,011) (108,687) (206,036) (226,713)
Balance at end of period $ 336,710 $ 750,796 $ 336,710 $ 750,796