Fair Value of Financial Instruments (Details 2) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2012
Dec. 31, 2011
Assets:    
Investment securities available-for-sale $ 102,572 $ 122,170
Federal Funds Sold 5,000  
Fair Value Inputs Level 1 [Member]
   
Assets:    
Cash and cash equivalents 61,835  
Investment securities available-for-sale 10  
Federal Funds Sold 5,000  
Federal Home Loan Bank stock 936  
Fair Value Inputs Level 2 [Member]
   
Assets:    
Investment securities available-for-sale 102,562  
Investment securities held-to-maturity 12,179  
Liabilities:    
Deposits 508,349  
Short-term borrowings 1,332  
Fair Value Inputs Level 3 [Member]
   
Assets:    
Loans, net of allowance for loan losses 352,409  
Carrying Amount [Member]
   
Assets:    
Cash and cash equivalents 61,835 52,797
Investment securities available-for-sale 102,572 122,170
Investment securities held-to-maturity 12,191 1,170
Federal Funds Sold 5,000  
Federal Home Loan Bank stock 936 2,861
Loans, net of allowance for loan losses 344,733 381,085
Liabilities:    
Deposits 506,628 527,073
Short-term borrowings 1,332 356
Long-term debt   20,000
Estimated Fair Value [Member]
   
Assets:    
Cash and cash equivalents 61,835 52,797
Investment securities available-for-sale 102,572 122,170
Investment securities held-to-maturity 12,179 1,170
Federal Funds Sold 5,000  
Federal Home Loan Bank stock 936 2,861
Loans, net of allowance for loan losses 352,409 383,879
Liabilities:    
Deposits 508,349 528,741
Short-term borrowings 1,332 356
Long-term debt   $ 20,383