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Mortgage Revenue Bonds - Schedule of MRBs Redeemed (Details) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 USD ($) Unit | Dec. 31, 2022 USD ($) Unit | Jan. 31, 2022 USD ($)
Schedule Of Available For Sale Securities [Line Items] |  |  |  |
Principal Outstanding at Date of Restructuring |  |  |  | $ 61,055,000
Mortgage Revenue Bonds [Member] |  |  |  |
Schedule Of Available For Sale Securities [Line Items] |  |  |  |
Principal Outstanding at Date of Restructuring |  | $ 8,493,040 | $ 37,795,376 |
Mortgage Revenue Bonds [Member] | Ohio Properties [Member] | Series A-1 [Member] | Crescent Village, Willow Bend and Postwoods [Member] |  |  |  |
Schedule Of Available For Sale Securities [Line Items] |  |  |  |
Month Redeemed | [1] |  | March |
Units | Unit | [1] |  | 362 |
Original Maturity Date | [1] |  | Jun. 01, 2050 |
Interest Rate | [1] |  | 7.00% |
Principal Outstanding at Date of Restructuring | [1] |  | $ 13,544,000 |
Mortgage Revenue Bonds [Member] | Ohio Properties [Member] | Series B [Member] | Crescent Village, Willow Bend and Postwoods [Member] |  |  |  |
Schedule Of Available For Sale Securities [Line Items] |  |  |  |
Month Redeemed | [1] |  | March |
Units | Unit | [1] |  | 362 |
Original Maturity Date | [1] |  | Jun. 01, 2050 |
Interest Rate | [1] |  | 10.00% |
Principal Outstanding at Date of Restructuring | [1] |  | $ 3,459,840 |
Mortgage Revenue Bonds [Member] | Bridle Ridge [Member] | Greer, SC [Member] |  |  |  |
Schedule Of Available For Sale Securities [Line Items] |  |  |  |
Month Redeemed |  |  | May |
Units | Unit |  |  | 152 |
Original Maturity Date |  |  | Jan. 01, 2043 |
Interest Rate |  |  | 6.00% |
Principal Outstanding at Date of Restructuring |  |  | $ 7,100,000 |
Mortgage Revenue Bonds [Member] | Cross Creek [Member] | Beaufort, SC [Member] |  |  |  |
Schedule Of Available For Sale Securities [Line Items] |  |  |  |
Month Redeemed |  |  | September |
Units | Unit |  |  | 144 |
Original Maturity Date |  |  | Mar. 01, 2049 |
Interest Rate |  |  | 6.15% |
Principal Outstanding at Date of Restructuring |  |  | $ 7,666,752 |
Mortgage Revenue Bonds [Member] | Gateway Village [Member] | Durham, NC [Member] |  |  |  |
Schedule Of Available For Sale Securities [Line Items] |  |  |  |
Month Redeemed |  |  | October |
Units | Unit |  |  | 64 |
Original Maturity Date |  |  | Apr. 01, 2032 |
Interest Rate |  |  | 6.10% |
Principal Outstanding at Date of Restructuring |  |  | $ 2,589,163 |
Mortgage Revenue Bonds [Member] | Greens Property [Member] | Series A [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 |  |
Interest Rate |  | 6.50% |  |
Principal Outstanding at Date of Restructuring |  | $ 7,579,000 |  |
Mortgage Revenue Bonds [Member] | Greens Property [Member] | Series B [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 |  |
Interest Rate |  | 12.00% |  |
Principal Outstanding at Date of Restructuring |  | $ 914,040 |  |
Mortgage Revenue Bonds [Member] | Lynnhaven Apartments [Member] | Durham, NC [Member] |  |  |  |
Schedule Of Available For Sale Securities [Line Items] |  |  |  |
Month Redeemed |  |  | October |
Units | Unit |  |  | 75 |
Original Maturity Date |  |  | Apr. 01, 2032 |
Interest Rate |  |  | 6.10% |
Principal Outstanding at Date of Restructuring |  |  | $ 3,435,621 |
[1] | The Ohio Properties consist of Crescent Village, located in Cincinnati, Ohio, Willow Bend, located in Columbus (Hilliard), Ohio and Postwoods, located in Reynoldsburg, Ohio.

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