Property Loans, Net of Loan Loss Allowances - Summary of Partnership's Property Loans, Net of Loan Loss Allowances (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2022		Dec. 31, 2021		Mar. 31, 2021	Dec. 31, 2020
Accounts Notes And Loans Receivable [Line Items]
Property loan receivable, outstanding balance	$ 112,239,342		$ 76,850,616
Loan Loss Allowance	(7,888,815)		(8,749,348)		$ (8,305,046)	$ (8,305,046)
Property Loan Principal, net of allowance	104,350,527		68,101,268
Senior Construction Financing [Member]
Accounts Notes And Loans Receivable [Line Items]
Property loan receivable, outstanding balance	85,686,466	[1],[2]	47,274,576	[3],[4]
Property Loan Principal, net of allowance	85,686,466	[1],[2]	47,274,576	[3],[4]
Senior Construction Financing [Member] | Centennial Crossings [Member]
Accounts Notes And Loans Receivable [Line Items]
Property loan receivable, outstanding balance	17,434,260	[1],[2]	11,354,386	[3],[4]
Property Loan Principal, net of allowance	$ 17,434,260	[1],[2]	$ 11,354,386	[3],[4]
Maturity Date	Sep. 01, 2023	[1],[2],[5]	Sep. 01, 2023	[3],[4],[6]
Senior Construction Financing [Member] | Centennial Crossings [Member] | LIBOR [Member]
Accounts Notes And Loans Receivable [Line Items]
Interest Rate	2.50%	[1],[2],[7]	2.50%	[3],[4],[8]
Senior Construction Financing [Member] | Legacy Commons at Signal Hills [Member]
Accounts Notes And Loans Receivable [Line Items]
Property loan receivable, outstanding balance	$ 16,248,631	[1],[2]	$ 2,604,230	[3],[4]
Property Loan Principal, net of allowance	$ 16,248,631	[1],[2]	$ 2,604,230	[3],[4]
Maturity Date	Feb. 01, 2024	[1],[2],[5]	Feb. 01, 2024	[3],[4],[6]
Senior Construction Financing [Member] | Legacy Commons at Signal Hills [Member] | SOFR [Member]
Accounts Notes And Loans Receivable [Line Items]
Interest Rate	3.07%	[1],[2],[7]	3.07%	[3],[4],[8]
Senior Construction Financing [Member] | Hilltop at Signal Hills [Member]
Accounts Notes And Loans Receivable [Line Items]
Property loan receivable, outstanding balance	$ 10,319,890	[1],[2]	$ 1,000,000	[3],[4]
Property Loan Principal, net of allowance	$ 10,319,890	[1],[2]	$ 1,000,000	[3],[4]
Maturity Date	Aug. 01, 2023	[1],[2],[5]	Aug. 01, 2023	[3],[4],[6]
Senior Construction Financing [Member] | Hilltop at Signal Hills [Member] | SOFR [Member]
Accounts Notes And Loans Receivable [Line Items]
Interest Rate	3.07%	[1],[2],[7]	3.07%	[3],[4],[8]
Senior Construction Financing [Member] | Oasis at Twin Lakes [Member]
Accounts Notes And Loans Receivable [Line Items]
Property loan receivable, outstanding balance	$ 23,161,673	[1],[2]	$ 20,607,362	[3],[4]
Property Loan Principal, net of allowance	$ 23,161,673	[1],[2]	$ 20,607,362	[3],[4]
Maturity Date	Aug. 01, 2023	[1],[2],[5]	Aug. 01, 2023	[3],[4],[6]
Senior Construction Financing [Member] | Oasis at Twin Lakes [Member] | LIBOR [Member]
Accounts Notes And Loans Receivable [Line Items]
Interest Rate	2.50%	[1],[2],[7]	2.50%	[3],[4],[8]
Senior Construction Financing [Member] | Osprey Village [Member]
Accounts Notes And Loans Receivable [Line Items]
Property loan receivable, outstanding balance	$ 1,000,000	[1],[2]	$ 1,000,000	[3],[4]
Property Loan Principal, net of allowance	$ 1,000,000	[1],[2]	$ 1,000,000	[3],[4]
Maturity Date	Aug. 01, 2024	[1],[2],[5]	Aug. 01, 2024	[3],[4],[6]
Senior Construction Financing [Member] | Osprey Village [Member] | SOFR [Member]
Accounts Notes And Loans Receivable [Line Items]
Interest Rate	3.07%	[1],[2],[7]	3.07%	[3],[4],[8]
Senior Construction Financing [Member] | Scharbauer Flats Apartments [Member]
Accounts Notes And Loans Receivable [Line Items]
Property loan receivable, outstanding balance	$ 16,522,012	[1],[2]	$ 9,708,598	[3],[4]
Property Loan Principal, net of allowance	$ 16,522,012	[1],[2]	$ 9,708,598	[3],[4]
Maturity Date	Jan. 01, 2023	[1],[2],[5]	Jan. 01, 2023	[3],[4],[6]
Senior Construction Financing [Member] | Scharbauer Flats Apartments [Member] | LIBOR [Member]
Accounts Notes And Loans Receivable [Line Items]
Interest Rate	2.85%	[1],[2]	2.85%	[3],[4]
Senior Construction Financing [Member] | Willow Place Apartments [Member]
Accounts Notes And Loans Receivable [Line Items]
Property loan receivable, outstanding balance	$ 1,000,000	[1],[2]	$ 1,000,000	[3],[4]
Property Loan Principal, net of allowance	$ 1,000,000	[1],[2]	$ 1,000,000	[3],[4]
Maturity Date	Oct. 01, 2024	[1],[2],[5]	Oct. 01, 2024	[3],[4],[6]
Senior Construction Financing [Member] | Willow Place Apartments [Member] | SOFR [Member]
Accounts Notes And Loans Receivable [Line Items]
Interest Rate	3.30%	[1],[2],[9]	3.30%	[3],[4],[10]
Senior Acquisition Financing [Member]
Accounts Notes And Loans Receivable [Line Items]
Property loan receivable, outstanding balance	$ 13,652,394		$ 13,424,579
Property Loan Principal, net of allowance	13,652,394		13,424,579
Senior Acquisition Financing [Member] | Magnolia Crossing [Member]
Accounts Notes And Loans Receivable [Line Items]
Property loan receivable, outstanding balance	13,652,394		13,424,579
Property Loan Principal, net of allowance	$ 13,652,394		$ 13,424,579
Maturity Date	Dec. 01, 2022		Dec. 01, 2022
Senior Acquisition Financing [Member] | Magnolia Crossing [Member] | SOFR [Member]
Accounts Notes And Loans Receivable [Line Items]
Interest Rate	6.50%	[9]	6.50%	[10]
Other Property Loans [Member]
Accounts Notes And Loans Receivable [Line Items]
Property loan receivable, outstanding balance	$ 12,900,482		$ 16,151,461
Loan Loss Allowance	(7,888,815)		(8,749,348)
Property Loan Principal, net of allowance	5,011,667		7,402,113
Other Property Loans [Member] | Avistar (February 2013 Portfolio) [Member]
Accounts Notes And Loans Receivable [Line Items]
Property loan receivable, outstanding balance	201,972		201,972
Property Loan Principal, net of allowance	$ 201,972		$ 201,972
Maturity Date	Jun. 26, 2024		Jun. 26, 2024
Interest Rate	12.00%		12.00%
Other Property Loans [Member] | Avistar (June 2013 Portfolio) [Member]
Accounts Notes And Loans Receivable [Line Items]
Property loan receivable, outstanding balance	$ 251,622		$ 251,622
Property Loan Principal, net of allowance	$ 251,622		$ 251,622
Maturity Date	Jun. 26, 2024		Jun. 26, 2024
Interest Rate	12.00%		12.00%
Other Property Loans [Member] | Cross Creek [Member]
Accounts Notes And Loans Receivable [Line Items]
Property loan receivable, outstanding balance	$ 11,101,888		$ 11,101,887
Loan Loss Allowance	(7,393,815)		(7,393,814)
Property Loan Principal, net of allowance	$ 3,708,073		$ 3,708,073
Maturity Date	Dec. 01, 2025		Dec. 01, 2025
Interest Rate	6.15%		6.15%
Other Property Loans [Member] | Greens Property [Member]
Accounts Notes And Loans Receivable [Line Items]
Property loan receivable, outstanding balance	$ 850,000		$ 850,000
Property Loan Principal, net of allowance	$ 850,000		$ 850,000
Maturity Date	Sep. 01, 2046		Sep. 01, 2046
Interest Rate	10.00%		10.00%
Other Property Loans [Member] | Live 929 Apartments [Member]
Accounts Notes And Loans Receivable [Line Items]
Property loan receivable, outstanding balance	$ 495,000		$ 1,355,534
Loan Loss Allowance	$ (495,000)		$ (1,355,534)
Maturity Date	Jul. 31, 2049		Jul. 31, 2049
Interest Rate	8.00%		8.00%
Other Property Loans [Member] | Ohio Properties [Member]
Accounts Notes And Loans Receivable [Line Items]
Property loan receivable, outstanding balance			$ 2,390,446
Property Loan Principal, net of allowance			$ 2,390,446
Interest Rate			10.00%
Other Property Loans [Member] | Ohio Properties [Member] | Maximum [Member]
Accounts Notes And Loans Receivable [Line Items]
Maturity Date			Jun. 01, 2050
Other Property Loans [Member] | Ohio Properties [Member] | Minimum [Member]
Accounts Notes And Loans Receivable [Line Items]
Maturity Date			Dec. 01, 2026

[1] 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 borrower have guaranteed limited-to-full payment of principal and accrued interest on the property loan.

[2] The property loans are held in trust in connection with a TOB trust financing (Note 15).

[3] 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 borrower have guaranteed limited-to-full payment of principal and accrued interest on the property loan.

[4] The property loans are held in trust in connection with a TOB trust financing (Note 15).

[5] The borrower may elect to extend the maturity date for a period ranging between six and twelve months upon meeting certain conditions, including payment of a non-refundable extension fee.

[6] The borrower may elect to extend the maturity date for a period ranging between six and twelve months upon meeting certain conditions, including payment of a non-refundable extension fee.

[7] The index is subject to a floor of 0.50%.

[8] The index is subject to a floor of 0.50%.

[9] The index is subject to a floor of 0.25%.

[10] The index is subject to a floor of 0.25%.