Mortgage Revenue Bonds - Summary of Changes in Partnership's Allowance for Credit Losses (Details) - USD ($)		3 Months Ended
		Mar. 31, 2022		Mar. 31, 2021
Allowance for Credit Loss [Abstract]
Recovery of prior credit loss		$ (5,279)
Mortgage Revenue Bonds [Member]
Allowance for Credit Loss [Abstract]
Balance, beginning of period		9,175,482		$ 7,318,589
Other additions		860,533	[1]
Recovery of prior credit loss		(5,279)	[2]
Balance, end of period	[3]	$ 10,030,736		$ 7,318,589

[1] The other addition is related to a re-allocation of the loan loss allowance upon restructuring of the Live 929 Apartments MRBs and property loan.

[2] The Partnership compared the present value of cash flows expected to be collected to the amortized cost basis of the Live 929 Apartments Series 2022A MRB as of March 31, 2022, which indicated a recovery of value. The Partnership will accrete the recovery of prior credit loss into investment income over the term of the MRB.

[3] The allowance for credit losses as of March 31, 2022 is related to the Provision Center 2014-1 MRB and the Live 929 Apartments - Series 2022A MRB. The allowance for credit losses as of March 31, 2021 is related to the Provision Center 2014-1 MRB and the Live 929 Apartments – 2014 Series A MRB.