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3) Investments: Commercial Real Estate Investment (Details) | Mar. 31, 2021 USD ($) ft² | Dec. 31, 2020 USD ($) ft²
--- | --- | ---
Real estate held for investment (net of accumulated depreciation) |  | $ 157,040,536 | $ 131,684,453
Real estate held for sale |  | 5,556,866 | 7,878,807
Commercial Real Estate |  |  |
Real estate held for investment (net of accumulated depreciation) |  | $ 117,288,006 | $ 106,840,710
Total Square Footage | ft² |  | 488,300 | 485,428
Real estate held for sale |  | $ 4,400,553 | $ 4,400,553
Square Footage | ft² |  | 222,679 | 222,679
Utah |  |  |
Real estate held for investment (net of accumulated depreciation) | [1] | $ 39,251,557 | $ 23,777,478
Utah | Commercial Real Estate |  |  |
Real estate held for investment (net of accumulated depreciation) |  | $ 111,008,057 | $ 100,927,528
Total Square Footage | ft² |  | 379,066 | 379,066
Louisiana | Commercial Real Estate |  |  |
Real estate held for investment (net of accumulated depreciation) |  | $ 2,981,296 | $ 2,998,684
Total Square Footage | ft² |  | 84,841 | 84,841
Mississippi | Commercial Real Estate |  |  |
Real estate held for investment (net of accumulated depreciation) |  | $ 2,909,508 | $ 2,914,498
Total Square Footage | ft² |  | 21,521 | 21,521
Real estate held for sale |  | $ 151,553 | $ 151,553
Square Footage | ft² |  | 0 | 0
California | Commercial Real Estate |  |  |
Real estate held for investment (net of accumulated depreciation) |  | $ 389,145 | $ 0
Total Square Footage | ft² |  | 2,872 | 0
Kansas | Commercial Real Estate |  |  |
Real estate held for sale |  | $ 4,000,000 | $ 4,000,000
Square Footage | ft² |  | 222,679 | 222,679
Texas | Commercial Real Estate |  |  |
Real estate held for sale |  | $ 249,000 | $ 249,000
Square Footage | ft² |  | 0 | 0
[1] | The estimated remaining cost to complete the undeveloped lots is $15,613,000 and $17,354,000 as of March 31, 2021 and December 31, 2020, respectively.

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