Subsequent Events - Schedule of Terms of MRBs Upon Redemption (Details)		1 Months Ended	12 Months Ended
		Jan. 31, 2022 USD ($) Unit	Dec. 31, 2021 USD ($) Unit	Dec. 31, 2020 USD ($)
Live929 Apartments [Member]
Subsequent Event [Line Items]
Original Maturity Date			Jul. 31, 2049	Jul. 31, 2049
Live929 Apartments [Member] | Baltimore, MD [Member] | Series B [Member]
Subsequent Event [Line Items]
Units | Unit	[1]		575
Original Maturity Date	[1]		Jul. 01, 2039
Interest Rate	[1],[2]		1.60%
Mortgage Revenue Bonds [Member]
Subsequent Event [Line Items]
Cost Adjusted for Paydowns and Allowances at Restructuring Date | $			$ 41,395,781	$ 24,472,905
Subsequent Event [Member] | Live929 Apartments [Member] | Baltimore, MD [Member] | Series A [Member]
Subsequent Event [Line Items]
Month Restructured		January 2022
Units | Unit		575
Original Maturity Date		Jan. 01, 2029
Interest Rate		4.30%
Subsequent Event [Member] | Mortgage Revenue Bonds [Member]
Subsequent Event [Line Items]
Cost Adjusted for Paydowns and Allowances at Restructuring Date | $		$ 53,493,147
Subsequent Event [Member] | Mortgage Revenue Bonds [Member] | Live929 Apartments [Member] | Baltimore, MD [Member] | Series A [Member]
Subsequent Event [Line Items]
Month Restructured		January 2022
Units | Unit		575
Original Maturity Date		Jul. 01, 2049
Interest Rate		5.78%
Cost Adjusted for Paydowns and Allowances at Restructuring Date | $		$ 36,149,147
Subsequent Event [Member] | Mortgage Revenue Bonds [Member] | Live929 Apartments [Member] | Baltimore, MD [Member] | Series B [Member]
Subsequent Event [Line Items]
Month Restructured		January 2022
Units | Unit		575
Original Maturity Date		Jul. 01, 2039
Interest Rate	[3]	1.60%
Cost Adjusted for Paydowns and Allowances at Restructuring Date | $		$ 17,344,000

[1] The Partnership purchased the MRB at a discount to outstanding principal of $4.3 million. The purchase price of the bond was $17.3 million.

[2] The MRB has a variable interest rate equal to 69.5% of the sum of LIBOR plus 1.80% multiplied by a margin equal to one minus the maximum U.S. Federal corporate tax rate divided by 0.65.

[3] The MRB has a variable interest rate equal to 69.5% of the sum of LIBOR plus 1.80% multiplied by a margin equal to one minus the maximum Federal corporate tax rate divided by 0.65.