17) Fair Value of Financial Instruments: Schedule of Changes in the consolidated balance sheet line items measured using level 3 inputs (Details) - USD ($)		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Transfer of loans held for sale to mortgage loans held for investment		$ 31,881,851	$ 10,827,797
Net Derivatives Loan Commitments
Fair Value Balance		2,491,233	1,591,816	$ 1,996,589
Originations		0
Sales		0
Transfer of loans held for sale to mortgage loans held for investment		0
Transfer from fixed maturity securities held to maturity		0
Fair Value, Gains (Losses) included in earnings	[1]	899,417	(404,773)
Loans Held For Sale
Fair Value Balance		213,457,632	136,210,853	$ 133,414,188
Originations		2,606,839,175	2,194,607,543
Sales		(2,580,875,055)	(2,259,145,473)
Transfer of loans held for sale to mortgage loans held for investment		(31,881,851)	(10,827,797)
Fair Value, Gains (Losses) included in earnings	[1]	83,164,510	78,162,392
Fixed maturity securities available for sale
Fair Value Balance		3,216,382	$ 0
Originations		0
Sales		0
Transfer of loans held for sale to mortgage loans held for investment		0
Transfer from fixed maturity securities held to maturity		3,216,382
Fair Value, Gains (Losses) included in earnings	[1]	$ 0

[1] As a component of mortgage fee income on the consolidated statements of earnings