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Business Combination & Asset Purchase (Details Textual) (USD $)
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2007
Jul. 09, 2010
Business Combination & Asset Purchase (Textual) [Abstract]          
Deposits at close included in purchase         $ 28,000,000
Loans included in purchase         14,000,000
Number of years amortized on straight line basis       7 years  
Number of years amortized over an estimated remaining economic useful life of deposits 7 years        
Amortization expense 312,000 312,000 235,000    
Knisely [Member]
          
Business Combination & Asset Purchase (Additional Textual) [Abstract]          
Recognition of core deposit intangible asset with acquired purchase       1,100,000  
Hicksville [Member]
          
Business Combination & Asset Purchase (Additional Textual) [Abstract]          
Recognition of core deposit intangible asset with acquired purchase $ 1,090,000