CONSOLIDATED STATEMENTS OF CHANGES IN PARTNER'S CAPITAL - USD ($)	3 Months Ended				12 Months Ended			196 Months Ended
	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2023
Increase (Decrease) in Partners' Capital
Balance		$ (59,869,357)		$ (49,292,608)	$ (59,869,357)	$ (49,292,608)	$ (41,469,045)
Balance (in units)		119,255		121,516	119,255	121,516	121,756
Distribution to Partners					$ (9,954,888)	$ (9,267,981)	$ (4,673,140)
Stock Buyback					$ (3,925,535)	$ (5,326,973)	$ (450,258)	$ (54,421,000)
Stock Buyback (in units)					(1,824)	(2,261)	(240)
Net Income (Loss)	$ 2,299,745	$ 1,754,375	$ 2,142,646	$ 342,418	$ 8,453,950	$ 3,723,273	$ (2,700,163)
Net unrealized (loss) gain on derivative instruments for interest rate swaps					(58,554)	294,931	0
Balance	$ (65,354,384)		$ (59,869,357)		$ (65,354,384)	$ (59,869,357)	$ (49,292,608)	$ (65,354,384)
Balance (in units)	117,431		119,255		117,431	119,255	121,516	117,431
Accumulated Comprehensive
Increase (Decrease) in Partners' Capital
Balance		$ 294,931			$ 294,931
Net unrealized (loss) gain on derivative instruments for interest rate swaps					(58,554)	$ 294,931
Balance	$ 236,377		$ 294,931		$ 236,377	$ 294,931		$ 236,377
Subtotal
Increase (Decrease) in Partners' Capital
Balance (in units)		180,225		180,225	180,225	180,225	180,225
Balance (in units)	180,225		180,225		180,225	180,225	180,225	180,225
Class A
Increase (Decrease) in Partners' Capital
Balance		$ (48,160,460)		$ (39,462,356)	$ (48,160,460)	$ (39,462,356)	$ (33,203,447)
Balance (in units)		144,180		144,180	144,180	144,180	144,180
Distribution to Partners					$ (7,963,910)	$ (7,414,385)	$ (3,738,512)
Stock Buyback					(3,141,917)	(4,262,338)	(360,266)
Net Income (Loss)					6,763,160	2,978,619	(2,160,131)
Balance	$ (52,503,128)		$ (48,160,460)		$ (52,503,128)	$ (48,160,460)	$ (39,462,356)	$ (52,503,128)
Balance (in units)	144,180		144,180		144,180	144,180	144,180	144,180
Class B
Increase (Decrease) in Partners' Capital
Balance		$ (11,403,636)		$ (9,338,738)	$ (11,403,636)	$ (9,338,738)	$ (7,852,318)
Balance (in units)		34,243		34,243	34,243	34,243	34,243
Distribution to Partners					$ (1,891,429)	$ (1,760,916)	$ (887,897)
Stock Buyback					$ (744,437)	(1,011,403)	(85,492)
Stock Buyback (in units)					(346.54)
Net Income (Loss)					$ 1,606,251	707,421	(513,031)
Balance	$ (12,433,251)		$ (11,403,636)		$ (12,433,251)	$ (11,403,636)	$ (9,338,738)	$ (12,433,251)
Balance (in units)	34,243		34,243		34,243	34,243	34,243	34,243
General Partnership
Increase (Decrease) in Partners' Capital
Balance		$ (600,192)		$ (491,513)	$ (600,192)	$ (491,513)	$ (413,280)
Balance (in units)		1,802		1,802	1,802	1,802	1,802
Distribution to Partners					$ (99,549)	$ (92,680)	$ (46,731)
Stock Buyback					$ (39,181)	(53,232)	(4,500)
Stock Buyback (in units)					(18.24)
Net Income (Loss)					$ 84,540	37,233	(27,002)
Balance	$ (654,383)		$ (600,192)		$ (654,383)	$ (600,192)	$ (491,513)	$ (654,383)
Balance (in units)	1,802		1,802		1,802	1,802	1,802	1,802
Treasury Units
Increase (Decrease) in Partners' Capital
Balance (in units)		60,970		58,709	60,970	58,709	58,469
Stock Buyback (in units)					(1,824)	(2,261)	(240)
Balance (in units)	62,794		60,970		62,794	60,970	58,709	62,794