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Schedule of Investments Classified by Contractual Maturity Date (Details) - USD ($) | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Marketable Securities [Line Items] |  |
Amortized cost | $ 369,382,018 | $ 362,750,511
Estimated fair value | 357,570,527 | 345,858,492
Mortgage-Backed Securities, Issued by US Government Sponsored Enterprises [Member] |  |
Marketable Securities [Line Items] |  |
Amortized cost | 33,859,690 | 33,501,686
Estimated fair value | 29,853,692 | 29,569,712
Redeemable Preferred Stock [Member] |  |
Marketable Securities [Line Items] |  |
Amortized cost | 250,000 | 250,000
Estimated fair value | 260,000 | 260,000
Cemetery Perpectual Care Oblication [Member] |  |
Marketable Securities [Line Items] |  |
Amortized cost | 261,969 | 263,205
Estimated fair value | 256,422 | 254,731
Restricted Assets [Member] |  |
Marketable Securities [Line Items] |  |
Amortized cost | 1,230,685 | 1,234,818
Estimated fair value | 1,217,307 | $ 1,217,308
Due in 1 year [Member] |  |
Marketable Securities [Line Items] |  |
Amortized cost | 18,103,991 |
Estimated fair value | 18,032,556 |
Due in 1 year [Member] | Cemetery Perpectual Care Oblication [Member] |  |
Marketable Securities [Line Items] |  |
Amortized cost | 89,004 |
Estimated fair value | 89,384 |
Due in 1 year [Member] | Restricted Assets [Member] |  |
Marketable Securities [Line Items] |  |
Amortized cost |  |
Estimated fair value |  |
Due in 2-5 years [Member] |  |
Marketable Securities [Line Items] |  |
Amortized cost | 149,458,111 |
Estimated fair value | 145,781,675 |
Due in 2-5 years [Member] | Cemetery Perpectual Care Oblication [Member] |  |
Marketable Securities [Line Items] |  |
Amortized cost | 76,509 |
Estimated fair value | 71,788 |
Due in 2-5 years [Member] | Restricted Assets [Member] |  |
Marketable Securities [Line Items] |  |
Amortized cost | 318,067 |
Estimated fair value | 311,893 |
Due in 5-10 years [Member] |  |
Marketable Securities [Line Items] |  |
Amortized cost | 81,699,121 |
Estimated fair value | 80,082,902 |
Due in 5-10 years [Member] | Cemetery Perpectual Care Oblication [Member] |  |
Marketable Securities [Line Items] |  |
Amortized cost | 41,621 |
Estimated fair value | 40,849 |
Due in 5-10 years [Member] | Restricted Assets [Member] |  |
Marketable Securities [Line Items] |  |
Amortized cost | 153,284 |
Estimated fair value | 151,610 |
Due in more than 10 years [Member] |  |
Marketable Securities [Line Items] |  |
Amortized cost | 86,011,105 |
Estimated fair value | 83,559,702 |
Due in more than 10 years [Member] | Cemetery Perpectual Care Oblication [Member] |  |
Marketable Securities [Line Items] |  |
Amortized cost | 54,835 |
Estimated fair value | 54,401 |
Due in more than 10 years [Member] | Restricted Assets [Member] |  |
Marketable Securities [Line Items] |  |
Amortized cost | 759,334 |
Estimated fair value | $ 753,804 |

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