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Loans and Allowance for Loan Losses (Detail Textuals)
 1 Months Ended 3 Months Ended 9 Months Ended
Mar. 31, 2016
Sep. 30, 2016
USD ($)
Security
Mar. 31, 2016
Sep. 30, 2015
USD ($)
Security
Sep. 30, 2016
USD ($)
Security
Sep. 30, 2015
USD ($)
Security
Dec. 31, 2015
USD ($)
Loans and Leases Receivable Disclosure [Line Items]              
Carrying amount of loans pledged as collateral to the Federal Home Loan Bank   $ 472,900,000     $ 472,900,000    
Fair value amount of loans pledged as collateral to the Federal Home Loan Bank   388,300,000     388,300,000    
Look back period 3 years   5 years        
Impaired loans individually evaluated for impairment   9,242,000     9,242,000   $ 10,268,000
Impaired loans were evaluated based on the fair value of the loan's collateral   4,700,000     4,700,000   6,400,000
Specific allowance related to impaired loans   1,302,000   $ 2,000,000 1,302,000 $ 2,000,000 1,540,000
Impaired loans with no reserve allocation   $ 2,132,000     $ 2,132,000   $ 4,539,000
Impaired loans required no reserve allocation, percentage   23.00%     23.00%   44.00%
Interest income recognized on impaired loans   $ 55,000   $ 63,000 $ 246,000 $ 261,000  
Troubled debt restructurings   6,300,000     6,300,000   $ 6,400,000
Amount of specific reserves related to TDRs which were allocated to the allowance for loan losses   $ 445,000     $ 445,000   910,000
Number of contracts modified | Security   6   0 7 10  
Performing TDRs              
Loans and Leases Receivable Disclosure [Line Items]              
Troubled debt restructurings   $ 5,700,000     $ 5,700,000   5,900,000
Nonperforming TDRs              
Loans and Leases Receivable Disclosure [Line Items]              
Troubled debt restructurings   $ 597,000     $ 597,000   $ 527,000