8) Fair Value of Financial Instruments: Fair Value Assets Measured on a Nonrecurring Basis (Details) - USD ($)	Mar. 31, 2020	Dec. 31, 2019
Impaired mortgage loans held for investment	$ 1,959,398	$ 1,302,025
Impaired real estate held for investment		8,375,884
Assets, Fair Value Disclosure, Nonrecurring	1,959,398	9,677,909
Fair Value, Inputs, Level 1
Impaired mortgage loans held for investment	0	0
Impaired real estate held for investment		0
Assets, Fair Value Disclosure, Nonrecurring	0	0
Fair Value, Inputs, Level 2
Impaired mortgage loans held for investment	0	0
Impaired real estate held for investment		0
Assets, Fair Value Disclosure, Nonrecurring	0	0
Fair Value, Inputs, Level 3
Impaired mortgage loans held for investment	1,959,398	1,302,025
Impaired real estate held for investment		8,375,884
Assets, Fair Value Disclosure, Nonrecurring	$ 1,959,398	$ 9,677,909