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Loans and Allowance for Loan Losses (Detail Textuals)
 1 Months Ended 3 Months Ended
Mar. 31, 2016
USD ($)
Mar. 31, 2017
USD ($)
Contract
Mar. 31, 2016
USD ($)
Contract
Dec. 31, 2016
USD ($)
Loans and Leases Receivable Disclosure [Line Items]        
Amount of loans pledged as collateral to the Federal Home Loan Bank   $ 499,100,000    
Look back period 3 years   5 years  
Impaired loans individually evaluated for impairment   9,324,000   $ 9,144,000
Impaired loans were evaluated based on the fair value of the loan's collateral   5,300,000   4,500,000
Specific allowance related to impaired loans $ 1,300,000 1,103,000 $ 1,300,000 1,080,000
Impaired loans with no reserve allocation   $ 1,611,000   $ 2,114,000
Impaired loans required no reserve allocation, percentage   17.00%   23.00%
Interest income recognized on impaired loans   $ 76,000 $ 228,000  
Troubled debt restructurings   6,400,000   $ 6,300,000
Amount of specific reserves related to TDRs which were allocated to the allowance for loan losses   $ 473,000   410,000
Number of contracts modified | Contract [1]   2 1  
Performing TDRs        
Loans and Leases Receivable Disclosure [Line Items]        
Troubled debt restructurings   $ 5,800,000   5,700,000
Nonperforming TDRs        
Loans and Leases Receivable Disclosure [Line Items]        
Troubled debt restructurings   $ 573,000   $ 619,000
[1] The amounts reported post-modification are inclusive of all partial pay-downs and charge-offs, and no portion of the debt was forgiven. Loans modified as a TDR that were fully paid down, charged-off or foreclosed upon during the period ended are not reported.