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11) Mortgage Servicing Rights: Assumptions used in determining MSR value (Details)
6 Months Ended 12 Months Ended
Jun. 30, 2017
Dec. 31, 2016
Details    
Prepayment Speeds 3.79% 3.77%
Average Life in Years of MSR 6.28 6.52
Discount Rate 10.01% 10.01%