Condensed Consolidated Statements of Partners' Capital (Unaudited) - USD ($)	Total	Tier 2 [Member]	Tier 3 [Member]	General Partner [Member]	General Partner [Member] Tier 2 [Member]	BUCs - Restricted and Unrestricted [Member]	BUCs - Restricted and Unrestricted [Member] Tier 2 [Member]	BUCs - Restricted and Unrestricted [Member] Tier 3 [Member]	Number of BUCs - Restricted and Unrestricted [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Balance at Dec. 31, 2022	$ 323,955,517			$ 285,571		$ 323,669,946				$ 43,748,239
Cumulative effect of accounting change (Note 2)	(5,949,000)			(59,490)		(5,889,510)
Partners' Capital Account, Units at Dec. 31, 2022									23,011,517
Distributions paid or accrued:
Regular distribution	(1,175,563)			(11,756)		(1,163,807)
Distribution of income (Note 22) and (Note 23)		$ (9,660,884)			$ (2,415,221)		$ (7,245,663)
Cash paid in lieu of fractional BUCs	(2,639)					(2,639)
Net income allocable to Partners	16,044,572			2,479,058		13,565,514
Restricted units awarded									102,087
Rounding of BUCs related to BUCs Distributions/Reverse Unit Split									(151)
Restricted unit compensation expense	349,959			3,500		346,459
Unrealized gains (losses) on securities	20,397,542			203,975		20,193,567				20,397,542
Unrealized gains (losses) on bond purchase commitments	112,547			1,125		111,422				112,547
Balance at Mar. 31, 2023	344,072,051			486,762		343,585,289				64,258,328
Partners' Capital Account, Units at Mar. 31, 2023									23,113,453
Balance at Dec. 31, 2022	323,955,517			285,571		323,669,946				43,748,239
Partners' Capital Account, Units at Dec. 31, 2022									23,011,517
Distributions paid or accrued:
Net income allocable to Partners	36,532,562
Unrealized gains (losses) on bond purchase commitments	39,171
Balance at Jun. 30, 2023	344,252,165			488,564		343,763,601				52,685,382
Partners' Capital Account, Units at Jun. 30, 2023									23,115,608
Balance at Mar. 31, 2023	344,072,051			486,762		343,585,289				64,258,328
Partners' Capital Account, Units at Mar. 31, 2023									23,113,453
Distributions paid or accrued:
Regular distribution	(2,002,209)			(20,022)		(1,982,187)
Distribution of income (Note 22) and (Note 23)		$ (3,513,629)	$ (3,806,269)		$ (878,407)		$ (2,635,222)	$ (3,806,269)
Net income allocable to Partners	20,487,990			1,010,088		19,477,902
Restricted units awarded									2,155
Restricted unit compensation expense	587,177			5,871		581,306
Unrealized gains (losses) on securities	(11,499,570)			(114,995)		(11,384,575)				(11,499,570)
Unrealized gains (losses) on bond purchase commitments	(73,376)			(733)		(72,643)				(73,376)
Balance at Jun. 30, 2023	344,252,165			488,564		343,763,601				52,685,382
Partners' Capital Account, Units at Jun. 30, 2023									23,115,608
Balance at Dec. 31, 2023	349,306,708			543,977		348,762,731				59,604,899
Partners' Capital Account, Units at Dec. 31, 2023									23,088,268
Distributions paid or accrued:
Regular distribution	(8,622,287)			(86,223)		(8,536,064)
Distribution of income (Note 22) and (Note 23)			(50,000)					(50,000)
Cash paid in lieu of fractional BUCs	(1,772)					(1,772)
Net income allocable to Partners	9,881,140			98,311		9,782,829
Sale of BUCs, net of issuance costs, Value	1,055,267					1,055,267
Sale of BUCs, net of issuance costs, Units									64,765
Restricted units awarded									109,581
Rounding of BUCs related to BUCs Distributions/Reverse Unit Split									(105)
Restricted unit compensation expense	332,321			3,323		328,998
Unrealized gains (losses) on securities	(12,008,737)			(120,087)		(11,888,650)				(12,008,737)
Unrealized gains (losses) on bond purchase commitments	(62,959)			(630)		(62,329)				(62,959)
Balance at Mar. 31, 2024	339,829,681			438,671		339,391,010				47,533,203
Partners' Capital Account, Units at Mar. 31, 2024									23,262,509
Balance at Dec. 31, 2023	349,306,708			543,977		348,762,731				59,604,899
Partners' Capital Account, Units at Dec. 31, 2023									23,088,268
Distributions paid or accrued:
Net income allocable to Partners	14,317,799
Unrealized gains (losses) on bond purchase commitments	(151,550)
Reclassification of gain on sale of mortgage revenue bond to net income	(1,012,581)
Balance at Jun. 30, 2024	325,860,884			294,615		325,566,269				36,836,634
Partners' Capital Account, Units at Jun. 30, 2024									23,290,442
Balance at Mar. 31, 2024	339,829,681			438,671		339,391,010				47,533,203
Partners' Capital Account, Units at Mar. 31, 2024									23,262,509
Distributions paid or accrued:
Regular distribution	(8,697,451)			(86,974)		(8,610,477)
Distribution of income (Note 22) and (Note 23)			$ (6,986)					$ (6,986)
Cash paid in lieu of fractional BUCs	(1,696)					(1,696)
Net income allocable to Partners	4,436,659			44,297		4,392,362
Sale of BUCs, net of issuance costs, Value	438,685					438,685
Sale of BUCs, net of issuance costs, Units									28,037
Rounding of BUCs related to BUCs Distributions/Reverse Unit Split									(104)
Restricted unit compensation expense	558,561			5,586		552,975
Unrealized gains (losses) on securities	(9,595,397)			(95,954)		(9,499,443)				(9,595,397)
Unrealized gains (losses) on bond purchase commitments	(88,591)			(885)		(87,706)				(88,591)
Reclassification of gain on sale of mortgage revenue bond to net income	(1,012,581)			(10,126)		(1,002,455)				(1,012,581)
Balance at Jun. 30, 2024	$ 325,860,884			$ 294,615		$ 325,566,269				$ 36,836,634
Partners' Capital Account, Units at Jun. 30, 2024									23,290,442