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3) Investments: Schedule of aging of mortgage loans (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2021 | Dec. 31, 2020
Mortgage Loans during period |  | $ 248,782,401 | $ 253,771,091
Mortgage Loans, Allowance for Loan Losses |  | 1,897,155 | (2,005,127)
Mortgage Loans, Unamortized deferred loan fees, net |  | 1,223,014 | (1,161,132)
Mortgage Loans, Unamortized discounts, net |  | 710,280 | (1,260,896)
Past Due 30 to 59 Days |  |  |
Mortgage Loans during period |  | 4,653,730 | 6,226,896
Past Due 60 to 89 Days |  |  |
Mortgage Loans during period |  | 3,344,105 | 2,860,928
Past Due 90 or More Days |  |  |
Mortgage Loans during period | [1] | 3,339,743 | 7,818,410
In Foreclosure |  |  |
Mortgage Loans during period | [1] | 2,365,667 | 2,464,060
Total Past Due |  |  |
Mortgage Loans during period |  | 13,703,245 | 19,370,294
Current |  |  |
Mortgage Loans during period |  | 235,079,156 | 234,400,797
Net Mortgage Loans |  |  |
Mortgage Loans during period |  | 244,951,952 | 249,343,936
Commercial Loan |  |  |
Mortgage Loans during period |  | 55,065,455 | 46,836,866
Mortgage Loans, Allowance for Loan Losses |  | 187,129 | (187,129)
Mortgage Loans, Unamortized deferred loan fees, net |  | 115,893 | (32,557)
Mortgage Loans, Unamortized discounts, net |  | 358,587 | (880,721)
Commercial Loan | Past Due 30 to 59 Days |  |  |
Mortgage Loans during period |  | 0 | 233,200
Commercial Loan | Past Due 60 to 89 Days |  |  |
Mortgage Loans during period |  | 2,027,048 | 812,780
Commercial Loan | Past Due 90 or More Days |  |  |
Mortgage Loans during period | [1] | 817,429 | 2,148,827
Commercial Loan | In Foreclosure |  |  |
Mortgage Loans during period | [1] | 250,936 | 0
Commercial Loan | Total Past Due |  |  |
Mortgage Loans during period |  | 3,095,413 | 3,194,807
Commercial Loan | Current |  |  |
Mortgage Loans during period |  | 51,970,042 | 43,642,059
Commercial Loan | Net Mortgage Loans |  |  |
Mortgage Loans during period |  | 54,403,846 | 45,736,459
Residential Mortgage |  |  |
Mortgage Loans during period |  | 88,266,355 | 95,822,448
Mortgage Loans, Allowance for Loan Losses |  | 1,666,824 | (1,774,796)
Mortgage Loans, Unamortized deferred loan fees, net |  | 951,108 | (909,864)
Mortgage Loans, Unamortized discounts, net |  | 351,693 | (380,175)
Residential Mortgage | Past Due 30 to 59 Days |  |  |
Mortgage Loans during period |  | 4,352,659 | 5,866,505
Residential Mortgage | Past Due 60 to 89 Days |  |  |
Mortgage Loans during period |  | 1,317,057 | 2,048,148
Residential Mortgage | Past Due 90 or More Days |  |  |
Mortgage Loans during period | [1] | 2,522,314 | 5,669,583
Residential Mortgage | In Foreclosure |  |  |
Mortgage Loans during period | [1] | 1,913,768 | 2,263,097
Residential Mortgage | Total Past Due |  |  |
Mortgage Loans during period |  | 10,105,798 | 15,847,333
Residential Mortgage | Current |  |  |
Mortgage Loans during period |  | 78,160,557 | 79,975,115
Residential Mortgage | Net Mortgage Loans |  |  |
Mortgage Loans during period |  | 85,296,730 | 92,757,613
Residential construction |  |  |
Mortgage Loans during period |  | 105,450,591 | 111,111,777
Mortgage Loans, Allowance for Loan Losses |  | 43,202 | (43,202)
Mortgage Loans, Unamortized deferred loan fees, net |  | 156,013 | (218,711)
Mortgage Loans, Unamortized discounts, net |  | 0 | 0
Residential construction | Past Due 30 to 59 Days |  |  |
Mortgage Loans during period |  | 301,071 | 127,191
Residential construction | Past Due 60 to 89 Days |  |  |
Mortgage Loans during period |  | 0 | 0
Residential construction | Past Due 90 or More Days |  |  |
Mortgage Loans during period | [1] | 0 | 0
Residential construction | In Foreclosure |  |  |
Mortgage Loans during period | [1] | 200,963 | 200,963
Residential construction | Total Past Due |  |  |
Mortgage Loans during period |  | 502,034 | 328,154
Residential construction | Current |  |  |
Mortgage Loans during period |  | 104,948,557 | 110,783,623
Residential construction | Net Mortgage Loans |  |  |
Mortgage Loans during period |  | $ 105,251,376 | $ 110,849,864
[1] | Interest income is not recognized on loans past due greater than 90 days or in foreclosure.

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