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2) Investments: Commercial Real Estate Held for Investment (Details) - USD ($)
Dec. 31, 2019
Dec. 31, 2018
Bank and other loans payable $ 217,572,612 $ 187,521,188
Commercial Real Estate    
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Gross 87,815,000 84,880,000
Bank and other loans payable $ 54,917,000 $ 52,237,000