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Disclosures About Fair Value of Assets and Liabilities (Details Textual)
12 Months Ended
Dec. 31, 2016
Disclosures About Fair Value Of Assets And Liabilities (Textual)  
Interest rate on mortgage service description The mortgage servicing rights have increased substantially in value. The servicing rights have had a decline in prepayments and the .10 percent decrease in the discount rate reflects the change in market rates.