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Intangible Assets (Details 1) - Mortgage servicing rights (MSRs)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Assumptions used in estimating the fair value of mortgage service rights    
Weighted-Average Constant Prepayment Rate 10.68% 9.58%
Weighted-Average Note Rate 3.85% 3.92%
Weighted-Average Discount Rate 9.69% 9.16%
Weighted-Average Expected Life (in years) 5 years 7 months 6 days 5 years 10 months 24 days