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Significant Accounting Policies (Details Textual) (USD $)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Significant Accounting Policies (Textual) [Abstract]      
Maturity of highly liquid investments three months or less    
Date of discontinued recognition of interest on mortgage and commercial loans 90 days    
Consumer and other retail loan due date 120 days    
Minimum duration for past due residential loans to be considered as nonperforming 90 days 90 days  
Provision for loan losses $ 722,000us-gaap_ProvisionForLoanLossesExpensed $ 467,000us-gaap_ProvisionForLoanLossesExpensed  
MSR Impairment (Recovery) 0us-gaap_MortgageServicingRightsMSRImpairmentRecovery 0us-gaap_MortgageServicingRightsMSRImpairmentRecovery 0us-gaap_MortgageServicingRightsMSRImpairmentRecovery
Impairment of company's goodwill 0us-gaap_GoodwillImpairmentLoss 0us-gaap_GoodwillImpairmentLoss 0us-gaap_GoodwillImpairmentLoss
Other assets $ 112,597,000us-gaap_BankOwnedLifeInsurance $ 109,363,000us-gaap_BankOwnedLifeInsurance  
Lock in period for interest rates 45 days    
Premises      
Significant Accounting Policies (Textual) [Abstract]      
Estimated life (in years) 40 years    
Furniture and equipment      
Significant Accounting Policies (Textual) [Abstract]      
Estimated life (in years) 7 years    
Maximum | Computer equipment      
Significant Accounting Policies (Textual) [Abstract]      
Estimated life (in years) 5 years    
Minimum | Computer equipment      
Significant Accounting Policies (Textual) [Abstract]      
Estimated life (in years) 3 years