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Fair Value Financial Instruments (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2012
Dec. 31, 2011
Carrying (Reported) Amount, Fair Value Disclosure [Member]
    
Fair Value, Financial Instruments [Line Items]    
Fair Value, Financial Instruments, Loans, Net $ 392,867 $ 363,344
Fair Value, Financial Instruments, Time Deposits 268,195 281,362
Fair Value, Financial Instruments, Long-term Debt 47,217 85,313
Estimate of Fair Value, Fair Value Disclosure [Member]
    
Fair Value, Financial Instruments [Line Items]    
Fair Value, Financial Instruments, Loans, Net 400,925 371,433
Fair Value, Financial Instruments, Time Deposits 272,709 286,644
Fair Value, Financial Instruments, Long-term Debt 52,010 93,360
Fair Value, Inputs, Level 1 [Member]
    
Fair Value, Financial Instruments [Line Items]    
Fair Value, Financial Instruments, Loans, Net 0 0
Fair Value, Financial Instruments, Time Deposits 0 0
Fair Value, Financial Instruments, Long-term Debt 0 0
Fair Value, Inputs, Level 2 [Member]
    
Fair Value, Financial Instruments [Line Items]    
Fair Value, Financial Instruments, Loans, Net 0 0
Fair Value, Financial Instruments, Time Deposits 272,709 286,644
Fair Value, Financial Instruments, Long-term Debt 52,010 93,360
Fair Value, Inputs, Level 3 [Member]
    
Fair Value, Financial Instruments [Line Items]    
Fair Value, Financial Instruments, Loans, Net 400,925 371,433
Fair Value, Financial Instruments, Time Deposits 0 0
Fair Value, Financial Instruments, Long-term Debt $ 0 $ 0