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Mortgage Revenue Bonds - Schedule of Investments in MRBs (Parenthetical) (Details) - USD ($) | Mar. 31, 2024 | Dec. 31, 2023
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Schedule Of Available For Sale Securities [Line Items] |  |
Remaining partnership commitment fund amount | $ 323,834,389 |
Mortgage Revenue Bond [Member] | Meadow Valley [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Remaining partnership commitment fund amount | $ 19,100,000 | $ 23,200,000

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