Stock Conversion (Details) (USD $)
In Millions, except Share data, unless otherwise specified
1 Months Ended 6 Months Ended
Oct. 29, 2010
Jun. 30, 2012
Feb. 27, 2012
Dec. 31, 2011
Mar. 31, 2010
Stock Conversion (Textual) [Abstract]          
Common stock, shares issued 1,725,000 1,699,800   1,699,800  
Net proceeds $ 14.5        
Common stock, par value $ 10 $ 0.01   $ 0.01  
Conversion costs 2.0        
Loaned by the Company to a trust for the ESOP 0.8        
ESOP purchased shares in the offering 67,750        
Purchases of shares in open market 70,250 0      
Shares are expected to be purchased   0      
Liquidation account represented the Bank's total equity capital         $ 17.0
Treasury stock, shares   0 86,250    
Repurchasing percentage of shares     5.00%    
Repurchased shares under the stock repurchase program   25,200