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Loans and Allowance for Loan Losses (Details Textual)
$ in Thousands
12 Months Ended
Dec. 31, 2016
USD ($)
contract
Dec. 31, 2015
USD ($)
Financing Receivable, Modifications [Line Items]    
Nonaccrual $ 1,415 $ 2,252
Number of loans modified as troubled debt restructurings with subsequent default | contract 0  
Pre-approved unused lines of credit with related parties $ 2,247  
Trouble Debt Restructuring [Member]    
Financing Receivable, Modifications [Line Items]    
Troubled debt restructuring 608 4,990
Nonaccrual $ 442 $ 1,297