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Property Loans - Summary of Partnership's Property Loans, Net of Allowances for Credit Losses (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |
Property loan receivable, outstanding balance |  | $ 122,556,204 |  | $ 175,604,711 |
Asset-Specific Allowance for Credit Losses |  | (495,000) |  | (495,000) |
Property Loan Principal, net of allowance |  | 122,061,204 |  | 175,109,711 |
Senior Construction Financing [Member] |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |
Property loan receivable, outstanding balance |  | 81,585,296 | [1] | 130,002,497 | [2]
Property Loan Principal, net of allowance |  | 81,585,296 | [1] | 130,002,497 | [2]
Other [Member] |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |
Property loan receivable, outstanding balance |  | 6,925,908 |  | 6,602,214 |
Asset-Specific Allowance for Credit Losses |  | (495,000) |  | (495,000) |
Property Loan Principal, net of allowance |  | $ 6,430,908 |  | $ 6,107,214 |
Centennial Crossings [Member] | Senior Construction Financing [Member] |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |
Maturity Date | [2] |  |  | Sep. 01, 2023 |
Property loan receivable, outstanding balance | [2] |  |  | $ 24,250,000 |
Property Loan Principal, net of allowance | [2] |  |  | $ 24,250,000 |
Centennial Crossings [Member] | LIBOR [Member] | Senior Construction Financing [Member] |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |
Interest Rate | [2] |  |  | 2.50% |
Hilltop at Signal Hills [Member] | Senior Construction Financing [Member] |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |
Maturity Date | [2] |  |  | Aug. 01, 2023 |
Property loan receivable, outstanding balance | [2] |  |  | $ 19,718,334 |
Property Loan Principal, net of allowance | [2] |  |  | $ 19,718,334 |
Hilltop at Signal Hills [Member] | SOFR [Member] | Senior Construction Financing [Member] |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |
Interest Rate | [2] |  |  | 3.07% |
Legacy Commons at Signal Hills [Member] | Senior Construction Financing [Member] |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |
Maturity Date |  | Feb. 01, 2024 | [1] | Feb. 01, 2024 | [2]
Property loan receivable, outstanding balance |  | $ 32,233,972 | [1] | $ 29,666,905 | [2]
Property Loan Principal, net of allowance |  | $ 32,233,972 | [1] | $ 29,666,905 | [2]
Legacy Commons at Signal Hills [Member] | SOFR [Member] | Senior Construction Financing [Member] |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |
Interest Rate |  | 3.07% | [1] | 3.07% | [2]
Magnolia Heights [Member] | Senior Construction Financing [Member] |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |
Maturity Date |  | Jul. 01, 2024 | [1] | Jul. 01, 2024 | [2]
Property loan receivable, outstanding balance |  | $ 8,118,546 | [1] | $ 6,188,601 | [2]
Property Loan Principal, net of allowance |  | $ 8,118,546 | [1] | $ 6,188,601 | [2]
Magnolia Heights [Member] | SOFR [Member] | Senior Construction Financing [Member] |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |
Interest Rate |  | 3.85% | [1] | 3.85% | [2]
Oasis at Twin Lakes [Member] | Senior Construction Financing [Member] |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |
Maturity Date | [2] |  |  | Aug. 01, 2023 |
Property loan receivable, outstanding balance | [2] |  |  | $ 24,018,657 |
Property Loan Principal, net of allowance | [2] |  |  | $ 24,018,657 |
Oasis at Twin Lakes [Member] | LIBOR [Member] | Senior Construction Financing [Member] |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |
Interest Rate | [2] |  |  | 2.50% |
Osprey Village [Member] | Senior Construction Financing [Member] |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |
Maturity Date |  | Aug. 01, 2024 | [1] | Aug. 01, 2024 | [2]
Property loan receivable, outstanding balance |  | $ 14,998,296 | [1] | $ 1,000,000 | [2]
Property Loan Principal, net of allowance |  | $ 14,998,296 | [1] | $ 1,000,000 | [2]
Osprey Village [Member] | SOFR [Member] | Senior Construction Financing [Member] |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |
Interest Rate |  | 3.07% | [1] | 3.07% | [2]
Osprey Village Supplemental [Member] | Senior Construction Financing [Member] |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |
Maturity Date | [1] | Aug. 01, 2024 |  |  |
Property loan receivable, outstanding balance | [1] | $ 4,600,000 |  |  |
Property Loan Principal, net of allowance | [1] | $ 4,600,000 |  |  |
Osprey Village Supplemental [Member] | SOFR [Member] | Senior Construction Financing [Member] |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |
Interest Rate | [1] | 3.22% |  |  |
Sandy Creek Apartments [Member] | Senior Construction Financing [Member] |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |
Maturity Date | [1] | Sep. 01, 2026 |  |  |
Interest Rate | [1] | 8.63% |  |  |
Property loan receivable, outstanding balance | [1] | $ 2,419,876 |  |  |
Property Loan Principal, net of allowance | [1] | $ 2,419,876 |  |  |
Scharbauer Flats Apartments [Member] | Senior Construction Financing [Member] |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |
Maturity Date | [2] |  |  | Jul. 01, 2023 |
Property loan receivable, outstanding balance | [2] |  |  | $ 24,160,000 |
Property Loan Principal, net of allowance | [2] |  |  | $ 24,160,000 |
Scharbauer Flats Apartments [Member] | LIBOR [Member] | Senior Construction Financing [Member] |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |
Interest Rate | [2] |  |  | 2.85% |
Willow Place Apartments [Member] | Senior Construction Financing [Member] |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |
Maturity Date |  | Oct. 01, 2024 | [1] | Oct. 01, 2024 | [2]
Property loan receivable, outstanding balance |  | $ 18,875,606 | [1] | $ 1,000,000 | [2]
Property Loan Principal, net of allowance |  | $ 18,875,606 | [1] | $ 1,000,000 | [2]
Willow Place Apartments [Member] | SOFR [Member] | Senior Construction Financing [Member] |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |
Interest Rate |  | 3.30% | [1] | 3.30% | [2]
Willow Place Apartments Supplemental [Member] | Senior Construction Financing [Member] |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |
Maturity Date | [1] | Oct. 01, 2024 |  |  |
Property loan receivable, outstanding balance | [1] | $ 339,000 |  |  |
Property Loan Principal, net of allowance | [1] | $ 339,000 |  |  |
Willow Place Apartments Supplemental [Member] | SOFR [Member] | Senior Construction Financing [Member] |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |
Interest Rate | [1] | 3.45% |  |  |
SoLa Impact Opportunity Zone Fund [Member] | Mezzanine Financing [Member] |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |
Maturity Date | [3] | Dec. 30, 2024 |  |  |
Interest Rate |  | 7.875% | [3] | 7.875% |
Property loan receivable, outstanding balance |  | $ 34,045,000 | [3] | $ 39,000,000 |
Property Loan Principal, net of allowance |  | 34,045,000 | [3] | 39,000,000 |
The 50/50 MF Property [Member] |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |
Property loan receivable, outstanding balance |  | $ 6,000,000 |  | 4,800,000 |
Property Loan Principal, net of allowance |  |  |  | $ 4,800,000 |
The 50/50 MF Property [Member] | Other [Member] |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |
Maturity Date |  | Mar. 11, 2048 |  |  |
Interest Rate |  | 9.00% |  | 9.00% |
Property loan receivable, outstanding balance |  | $ 5,977,314 |  | $ 4,803,620 |
Property Loan Principal, net of allowance |  | $ 5,977,314 |  | $ 4,803,620 |
Avistar (February 2013 Portfolio) [Member] | Other [Member] |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |
Maturity Date |  | Jun. 26, 2024 |  |  |
Interest Rate |  | 12.00% |  | 12.00% |
Property loan receivable, outstanding balance |  | $ 201,972 |  | $ 201,972 |
Property Loan Principal, net of allowance |  | $ 201,972 |  | $ 201,972 |
Avistar (June 2013 Portfolio) [Member] | Other [Member] |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |
Maturity Date |  | Jun. 26, 2024 |  |  |
Interest Rate |  | 12.00% |  | 12.00% |
Property loan receivable, outstanding balance |  | $ 251,622 |  | $ 251,622 |
Property Loan Principal, net of allowance |  | $ 251,622 |  | $ 251,622 |
Greens Property [Member] | Other [Member] |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |
Maturity Date |  | Sep. 01, 2046 |  |  |
Interest Rate |  |  |  | 10.00% |
Property loan receivable, outstanding balance |  |  |  | $ 850,000 |
Property Loan Principal, net of allowance |  |  |  | 850,000 |
Live 929 Apartments [Member] |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |
Property loan receivable, outstanding balance |  | $ 495,000 |  | $ 495,000 |
Live 929 Apartments [Member] | Other [Member] |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |
Maturity Date |  | Jul. 31, 2049 |  |  |
Interest Rate |  | 8.00% |  | 8.00% |
Property loan receivable, outstanding balance |  | $ 495,000 |  | $ 495,000 |
Asset-Specific Allowance for Credit Losses |  | $ (495,000) |  | $ (495,000) |
[1] | The property loans are held in trust in connection with TOB trust financings (Note 16) with the exception of the Osprey Village Supplemental and Willow Place Apartments Supplemental property loans. The property loans and associated GILs are on parity and share a first mortgage lien position on all real and personal property associated with the underlying property. Affiliates of the borrowers have guaranteed limited-to-full payment of principal and accrued interest on the property loans. The borrowers may elect to extend the maturity dates for periods ranging between six and twelve months upon meeting certain conditions, which may include payment of a non-refundable extension fee. The variable index interest rate components are typically subject to floors that range from 0% to 0.50%.
[2] | The property loans are held in trust in connection with TOB trust financings (Note 16). The property loans and associated GILs are on parity and share a first mortgage lien position on all real and personal property associated with the underlying property. Affiliates of the borrowers have guaranteed limited-to-full payment of principal and accrued interest on the property loans. The borrowers may elect to extend the maturity dates for periods ranging between six and twelve months upon meeting certain conditions, which may include payment of a non-refundable extension fee. The variable index interest rate components are typically subject to floors that range from 0% to 0.50%.
[3] | The property loan is held in trust in connection with a TOB trust financing (Note 16).

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