Subsequent Events - Schedule of terms of partnership's MRB investments (Details)		1 Months Ended
	Oct. 31, 2023 USD ($) Unit	Jul. 31, 2023 USD ($) Unit	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)
Subsequent Event [Line Items]
Initial funding			$ 100,445,000	$ 20,307,000
Mortgage Revenue Bonds [Member]
Subsequent Event [Line Items]
Initial funding		$ 4,000,000
Ocotillo Springs Series A [Member] | Brawley, CA [Member] | Mortgage Revenue Bonds [Member]
Subsequent Event [Line Items]
Units | Unit		75
Maturity Date		Aug. 01, 2038
Fixed Interest Rate		4.35%
Initial funding		$ 3,500,000
Ocotillo Springs Series A 1 [Member] | Brawley, CA [Member] | Mortgage Revenue Bonds [Member]
Subsequent Event [Line Items]
Units | Unit		75
Maturity Date		Aug. 01, 2038
Fixed Interest Rate		6.50%
Initial funding		$ 500,000
Subsequent Event [Member] | The Safford [Member] | Mortgage Revenue Bonds [Member]
Subsequent Event [Line Items]
Month Acquired	October 2023
Units | Unit	200
Maturity Date	Oct. 10, 2026
Fixed Interest Rate	7.59%
Initial funding	$ 7,560,034
Maximum Commitment	$ 43,000,000