Financial Instruments with Off- Balance Sheet Risk (Details Textual) (USD $)
In Thousands, unless otherwise specified
6 Months Ended 12 Months Ended
Jun. 30, 2012
Dec. 31, 2011
Jun. 30, 2011
Financial Instruments with Off Balance Sheet Risk (Textual) [Abstract]      
Commitments to fund fixed rate loans $ 4,442 $ 9,239  
Loss on commitment $ 0   $ 0
Maximum [Member]
     
Debt Instrument [Line Items]      
Range of interest rates on commitments to fund fixed rate loans 17.00% 17.90%  
Minimum [Member]
     
Debt Instrument [Line Items]      
Range of interest rates on commitments to fund fixed rate loans 3.00% 3.49%