12) Mortgage Servicing Rights: Schedule of Mortgage Servicing Rights (Details) - USD ($)	Jun. 30, 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	9,488,179	4,194,502
Amortization	(4,948,585)	(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	21,695,123	17,155,529
Mortgage servicing rights, net	21,695,123	17,155,529
Estimated fair value of MSRs at end of period	$ 22,921,824	$ 22,784,571