Fair Values of Financial Instruments (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2012
Dec. 31, 2011
Financial assets:    
Loans held for sale $ 540 $ 0
Bank-owned life insurance 8,237 3,068
Level I [Member]
   
Financial assets:    
Cash and cash equivalents 54,675  
Securities 166  
Loans held for sale 540  
Net loans 0  
Bank-owned life insurance 8,237  
Regulatory stock 0  
Accrued interest receivable 1,463  
Financial liabilities:    
Deposits 293,229  
Short-term borrowings 43,011  
Federal Home Loan Bank advances 0  
Accrued interest payable 153  
Level II [Member]
   
Financial assets:    
Cash and cash equivalents 0  
Securities 134,723  
Loans held for sale 0  
Net loans 0  
Bank-owned life insurance 0  
Regulatory stock 5,463  
Accrued interest receivable 0  
Financial liabilities:    
Deposits 0  
Short-term borrowings 0  
Federal Home Loan Bank advances 0  
Accrued interest payable 0  
Level III [Member]
   
Financial assets:    
Cash and cash equivalents 0  
Securities 0  
Loans held for sale 0  
Net loans 353,559  
Bank-owned life insurance 0  
Regulatory stock 0  
Accrued interest receivable 0  
Financial liabilities:    
Deposits 162,577  
Short-term borrowings 0  
Federal Home Loan Bank advances 17,969  
Accrued interest payable 0  
Carrying Value [Member]
   
Financial assets:    
Cash and cash equivalents 54,675 82,258
Securities 134,889 123,026
Loans held for sale 540  
Net loans 348,087 320,100
Bank-owned life insurance 8,237 3,068
Regulatory stock 5,463 5,463
Accrued interest receivable 1,463 1,349
Financial liabilities:    
Deposits 454,299 443,553
Short-term borrowings 43,011 37,073
Federal Home Loan Bank advances 16,738 19,161
Accrued interest payable 153 182
Fair Value [Member]
   
Financial assets:    
Cash and cash equivalents 54,675 82,258
Securities 134,889 123,026
Loans held for sale 540  
Net loans 353,559 327,138
Bank-owned life insurance 8,237 3,068
Regulatory stock 5,463 5,463
Accrued interest receivable 1,463 1,349
Financial liabilities:    
Deposits 455,806 445,587
Short-term borrowings 43,011 37,073
Federal Home Loan Bank advances 17,969 20,087
Accrued interest payable $ 153 $ 182