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Loans (Detail Textuals)
Jun. 30, 2016
USD ($)
Loan
Dec. 31, 2015
USD ($)
Loan
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans serviced for others $ 97,600,000 $ 85,900,000
Other Assets    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Fair value of mortgage servicing rights 646,000 561,000
Residential mortgage loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Carrying value of loans pledged as collateral $ 172,300,000 $ 168,200,000
Secured by one-to-four family residences    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Number of nonaccrual loans | Loan 1 1
Financing receivable, recorded Investment, nonaccrual status $ 89,000 $ 63,000
Home equity lines of credit    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Number of nonaccrual loans | Loan 1 1
Financing receivable, recorded Investment, nonaccrual status $ 18,000 $ 18,000
Home equity loan    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Number of nonaccrual loans | Loan 1  
Financing receivable, recorded Investment, nonaccrual status $ 29,000  
Line of credit    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Number of nonaccrual loans | Loan   1
Financing receivable, recorded Investment, nonaccrual status   $ 1,000