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Schedule of Investments Classified by Contractual Maturity Date (Details) | Sep. 30, 2021 USD ($)
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Marketable Securities [Line Items] |
Amortized Cost | $ 238,809,528
Estimated fair value | 264,844,942
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] |
Marketable Securities [Line Items] |
Amortized Cost | 36,316,313
Estimated fair value | 37,279,237
Redeemable Preferred Stock [Member] |
Marketable Securities [Line Items] |
Amortized Cost | 268,941
Estimated fair value | 282,466
Cemeteries and Mortuaries |
Marketable Securities [Line Items] |
Amortized Cost | 469,744
Estimated fair value | 474,140
Due In 25 Years [Member] |
Marketable Securities [Line Items] |
Amortized Cost | 62,693,405
Estimated fair value | 66,205,403
Due In 510 Years [Member] |
Marketable Securities [Line Items] |
Amortized Cost | 71,364,711
Estimated fair value | 79,246,211
Due in More Than 10 Years [Member] |
Marketable Securities [Line Items] |
Amortized Cost | 67,696,414
Estimated fair value | $ 81,357,485

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