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Mortgage Revenue Bonds - Schedule of Terms of MRBSs upon Redemption (Details) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2023 USD ($) Unit | Mar. 31, 2024 USD ($)
Schedule Of Available For Sale Securities [Line Items] |  |
Principal Outstanding at Date of Redemption | $ 18,315,580 | $ 22,073,000
Mortgage Revenue Bonds [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Principal Outstanding at Date of Redemption | 8,493,040 |
Greens Property [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Principal Outstanding at Date of Redemption | $ 850,000 |
Greens Property [Member] | Series A [Member] | Mortgage Revenue Bonds [Member] | Durham NC [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Month Redeemed | February 2023 |
Units | Unit | 168 |
Original Maturity Date | Oct. 01, 2047 |
Fixed Interest Rate | 6.50% |
Principal Outstanding at Date of Redemption | $ 7,579,000 |
Greens Property [Member] | Series B [Member] | Mortgage Revenue Bonds [Member] | Durham NC [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Month Redeemed | February 2023 |
Units | Unit | 168 |
Original Maturity Date | Oct. 01, 2047 |
Fixed Interest Rate | 12.00% |
Principal Outstanding at Date of Redemption | $ 914,040 |

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