Accrued Interest Receivable (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable    
Interest Receivable $ 3,147 $ 2,968
Loans receivable    
Accounts, Notes, Loans and Financing Receivable    
Interest Receivable 2,665 2,467
Investments    
Accounts, Notes, Loans and Financing Receivable    
Interest Receivable 478 493
Interest-earning deposits    
Accounts, Notes, Loans and Financing Receivable    
Interest Receivable $ 4 $ 8