12) Mortgage Servicing Rights: Assumptions used in determining MSR value (Details) - Decimal	6 Months Ended	12 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Text Block [Abstract]
Prepayment Speeds	18.9	15.30
Average Life in Years of MSR	4 years 6 months 25 days	5 years 3 months 8 days
Discount Rate	9.51	9.51