12) Mortgage Servicing Rights: Schedule of Mortgage Servicing Rights (Details) - USD ($)	Mar. 31, 2019	Dec. 31, 2018
Details
Balance before valuation allowance at beginning of year	$ 20,016,822	$ 21,376,937
MSRs proceeds from loan sales	275,533	3,922,816
Amortization	(1,243,342)	(5,282,931)
Application of valuation allowance to write down MSRs with other than temporary impairment	0	0
Balance before valuation allowance at year end	19,049,013	20,016,822
Mortgage servicing rights, net	19,049,013	20,016,822
Estimated fair value of MSRs at end of period	$ 26,133,155	$ 28,885,316