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Premises and Equipment, Net (Details Textual) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Premises and Equipment, Net (Textual) [Abstract]        
Depreciation expense $ 0.4 $ 0.4 $ 0.8 $ 0.8