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.