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2) Investments: Commercial Real Estate Held for Investment - Additional (Details) - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Gains (losses) on investments and other assets $ 23,941,179 $ (2,948,482)
Commercial Real Estate    
Pledged Assets Separately Reported, Other Assets Pledged as Collateral, at Fair Value 84,880,000 64,704,000
Bank Loans 52,237,000 40,994,000
Gains (losses) on investments and other assets $ 0 $ 5,350,967