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8): Fair Value of Financial Instruments: Schedule of Fair Value Measurements, Nonrecurring (Details) - USD ($)
Sep. 30, 2018
Dec. 31, 2017
Fair Value, Inputs, Level 1    
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate $ 0 $ 0
Assets accounted for at fair value on a nonrecurring basis - Impaired real estate held for investment 0  
Assets accounted for at fair value on a nonrecurring basis - Mortgage servicing rights 0 0
Assets, Fair Value Disclosure, Nonrecurring 0 0
Assets accounted for at fair value on non-recurring basis    
Impaired real estate held for investment   0
Impaired fixed maturity securities, held to maturity   0
Fair Value, Inputs, Level 2    
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate 0 0
Assets accounted for at fair value on a nonrecurring basis - Impaired real estate held for investment 0  
Assets accounted for at fair value on a nonrecurring basis - Mortgage servicing rights 0 0
Assets, Fair Value Disclosure, Nonrecurring 0 426,984
Assets accounted for at fair value on non-recurring basis    
Impaired real estate held for investment   0
Impaired fixed maturity securities, held to maturity   426,984
Fair Value, Inputs, Level 3    
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate 1,421,028 1,363,440
Assets accounted for at fair value on a nonrecurring basis - Impaired real estate held for investment 7,079,822  
Assets accounted for at fair value on a nonrecurring basis - Mortgage servicing rights 1,922,230 6,085,352
Assets, Fair Value Disclosure, Nonrecurring $ 10,423,080 15,948,792
Assets accounted for at fair value on non-recurring basis    
Impaired real estate held for investment   8,500,000
Impaired fixed maturity securities, held to maturity   $ 0