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3) Investments: Held-to-maturity Securities (Details) - USD ($) | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2020 | Dec. 31, 2019
AmortizedCost | $ 327,205,498 | $ 323,056,426
Held to maturity securities, Estimated fair value | 348,628,792 | 329,145,562
Mortgage loans on real estate and construction | 260,418,004 | 236,694,546
Mortgage loans on real estate and construction, unamortized deferred loan fees, net | (1,730,243) | 2,391,567
Mortgage loans on real estate and construction, allowance for losses | (2,443,557) | (1,453,037)
Mortgage loans on real estate and construction, Discount | (1,216,889) | (653,272)
Real estate held for investment, net of depreciation | 113,192,422 | 102,756,946
Real estate held for sale | 10,598,341 | 14,097,627
Policy loans | 14,450,587 | 14,762,805
Insurance assignments | 43,276,682 | 41,062,965
Federal Home Loan Bank stock | 4,056,600 | 894,300
Other investments | 5,450,438 | 4,973,225
Allowance for doubtful accounts | (1,533,696) | (1,448,026)
Total other investments and policy loans | 65,700,611 | 60,245,269
Accrued investment income | 5,008,772 | 4,833,232
Total investments | 815,338,453 | 781,876,605
Total |  |
AmortizedCost | 327,205,498 | 338,629,810
Held-to-maturity Securities, Unrecognized Holding Gain | 25,019,396 | 18,085,841
Held-to-maturity Securities, Unrecognized Holding Loss | (3,596,102) | (737,831)
Held to maturity securities, Estimated fair value | 348,628,792 | 355,977,820
US Treasury Securities |  |
AmortizedCost | 102,442,154 | 142,740,641
Held-to-maturity Securities, Unrecognized Holding Gain | 2,147,334 | 632,185
Held-to-maturity Securities, Unrecognized Holding Loss | 0 | (25,215)
Held to maturity securities, Estimated fair value | 104,589,488 | 143,347,611
US States and Political Subdivisions Debt Securities |  |
AmortizedCost | 5,878,900 | 7,450,366
Held-to-maturity Securities, Unrecognized Holding Gain | 269,394 | 87,812
Held-to-maturity Securities, Unrecognized Holding Loss | (2,661) | (9,026)
Held to maturity securities, Estimated fair value | 6,145,633 | 7,529,152
Corporate Debt Securities |  |
AmortizedCost | 182,731,042 | 156,599,184
Held-to-maturity Securities, Unrecognized Holding Gain | 21,371,660 | 16,768,449
Held-to-maturity Securities, Unrecognized Holding Loss | (2,841,768) | (463,413)
Held to maturity securities, Estimated fair value | 201,260,934 | 172,904,220
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises |  |
AmortizedCost | 35,789,063 | 31,475,280
Held-to-maturity Securities, Unrecognized Holding Gain | 1,209,447 | 597,395
Held-to-maturity Securities, Unrecognized Holding Loss | (734,173) | (240,177)
Held to maturity securities, Estimated fair value | 36,264,337 | 31,832,498
Redeemable Preferred Stock |  |
AmortizedCost | 364,339 | 364,339
Held-to-maturity Securities, Unrecognized Holding Gain | 21,561 | 0
Held-to-maturity Securities, Unrecognized Holding Loss | (17,500) | 0
Held to maturity securities, Estimated fair value | 368,400 | 364,339
Industrial, miscellaneous and all other |  |
Available-for-sale Securities, Amortized Cost Basis | 12,380,259 | 6,900,537
Available-for-sale Securities, Gross Unrealized Gain | 1,525,151 | 1,139,799
Available For Sale Securities - Gross Unrealized Losses | (2,113,899) | (769,171)
Available for Sale Securities - Estimated Fair Value | 11,791,511 | 7,271,165
Equity Securities |  |
Available-for-sale Securities, Amortized Cost Basis | 12,380,259 | 6,900,537
Available-for-sale Securities, Gross Unrealized Gain | 1,525,151 | 1,139,799
Available For Sale Securities - Gross Unrealized Losses | (2,113,899) | (769,171)
Available for Sale Securities - Estimated Fair Value | 11,791,511 | 7,271,165
Residential Mortgage |  |
Mortgage loans on real estate and construction | 109,304,960 | 113,043,965
Real estate held for investment, net of depreciation | 19,973,537 | 12,530,306
Real estate held for sale | 4,522,020 | 8,021,306
Residential construction |  |
Mortgage loans on real estate and construction | 106,890,366 | 89,430,237
Commercial |  |
Mortgage loans on real estate and construction | 49,613,367 | 38,718,220
Real estate held for investment, net of depreciation | 93,218,885 | 90,226,640
Real estate held for sale | $ 6,076,321 | $ 6,076,321

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