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Consolidated Balance Sheets (Parenthetical) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Balance Sheets [Abstract]    
Percentage of noncumulative preferred share 6.50%us-gaap_PreferredStockDividendRatePercentage  
Preferred stock, no par value      
Preferred stock, shares authorized 200,000us-gaap_PreferredStockSharesAuthorized 200,000us-gaap_PreferredStockSharesAuthorized
Preferred stock, shares issued 15,000us-gaap_PreferredStockSharesIssued 15,000us-gaap_PreferredStockSharesIssued
Common stock, stated value      
Common stock, shares authorized 10,000,000us-gaap_CommonStockSharesAuthorized 10,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued 5,027,433us-gaap_CommonStockSharesIssued 5,027,433us-gaap_CommonStockSharesIssued
Treasury stock, shares 152,302us-gaap_TreasuryStockShares 157,804us-gaap_TreasuryStockShares