8) Fair Value of Financial Instruments: Schedule of Changes in the consolidated balance sheet line items measured using level 3 inputs (Details) - USD ($)	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Net Derivatives Loan Commitments
Fair Value Balance	$ 2,491,233	$ 1,591,816
Originations	0	0
Sales	0	0
Transfer to mortgage loans held for investment	0	0
Transfer from fixed maturity securities held to maturity		0
Fair Value, Gains (Losses) included in earnings	12,454,218	899,417
Total gains (losses) included in other comprehensive income	0	0
Fair Value Balance	14,945,451	2,491,233
Loans Held For Sale
Fair Value Balance	213,457,632	136,210,853
Originations	3,824,329,264	2,606,839,175
Sales	(3,709,992,155)	(2,580,875,055)
Transfer to mortgage loans held for investment	(9,170,610)	(31,881,851)
Transfer from fixed maturity securities held to maturity		0
Fair Value, Gains (Losses) included in earnings	127,254,848	83,164,510
Total gains (losses) included in other comprehensive income	0	0
Fair Value Balance	445,878,979	213,457,632
Fixed maturity securities available for sale
Fair Value Balance	3,216,382	0
Originations	0	0
Sales	(1,031,500)	0
Transfer to mortgage loans held for investment	0	0
Transfer from fixed maturity securities held to maturity		3,216,382
Fair Value, Gains (Losses) included in earnings	2,532	0
Total gains (losses) included in other comprehensive income	102,739	0
Fair Value Balance	$ 2,290,153	$ 3,216,382