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Intangible Assets (Details 1) - Mortgage Service Rights
6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Assumptions used in estimating the fair value of mortgage service rights    
Weighted average constant prepayment rate 10.66% 9.69%
Weighted average note rate 3.92% 4.00%
Weighted average discount rate 9.34% 9.15%
Weighted average expected life (in years) 5 years 8 months 12 days 6 years