12) Mortgage Servicing Rights: Schedule of Mortgage Servicing Rights (Details) - USD ($)	Mar. 31, 2020	Dec. 31, 2019
Text Block [Abstract]
Balance before valuation allowance at beginning of year	$ 17,155,529	$ 20,016,822
MSRs proceeds from loan sales	1,677,178	4,194,502
Amortization	(2,055,576)	(7,055,795)
Application of valuation allowance to write down MSRs with other than temporary impairment	0	0
Balance before valuation allowance at year end	16,777,131	17,155,529
Mortgage servicing rights, net	16,777,131	17,155,529
Estimated fair value of MSRs at end of period	$ 16,976,241	$ 22,784,571