8) Fair Value of Financial Instruments: Fair Value Assets Measured on a Nonrecurring Basis (Details) - USD ($)	Sep. 30, 2019	Sep. 30, 2018
Total
Impaired mortgage loans held for investment	$ 243,937	$ 1,253,302
Impaired real estate held for investment	6,256,277	1,611,384
Assets, Fair Value Disclosure, Nonrecurring	6,500,214	2,864,686
Fair Value, Inputs, Level 1
Impaired mortgage loans held for investment	0	0
Impaired real estate held for investment	0	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	0
Assets, Fair Value Disclosure, Nonrecurring	0	0
Fair Value, Inputs, Level 3
Impaired mortgage loans held for investment	243,937	1,253,302
Impaired real estate held for investment	6,256,277	1,611,384
Assets, Fair Value Disclosure, Nonrecurring	$ 6,500,214	$ 2,864,686