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Non-performing Assets Including Troubled Debt Restructurings (TDR) (Details Textual) - USD ($)
 3 Months Ended
Mar. 31, 2017
Dec. 31, 2016
Mar. 31, 2016
Aggregate of multiple consecutive maturity date extensions delay in payment, days 120 days    
Timely payments on contract terms for minimum consecutive months prior to consideration for removing loan from TDR status 6 years    
Minimum consecutive months payment for removing the loan from non-accrual status 6 years    
ALL reserve for TDR's $ 507,000   $ 24,000
Mortgage Loans in Process of Foreclosure, Amount 321,000    
Residential Real Estate [Member]      
Other Assets, Noncurrent $ 25,000 $ 21,000