CONSOLIDATED STATEMENTS OF CHANGES IN PARTNER'S CAPITAL - USD ($)	3 Months Ended		187 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023
Increase (Decrease) in Partners' Capital
Balance	$ (59,869,357)	$ (49,292,607)
Balance (in units)	119,255	121,516
Distribution to Partners	$ (5,704,385)	$ (5,821,134)
Stock Buyback	$ (944,520)	$ (1,337,814)	$ (51,440,000)
Stock Buyback (in units)	(431)	(589)
Net income	$ 1,754,375	$ 342,418
Net unrealized (loss) on derivative instruments for interest rate swaps	(165,887)	0
Balance	$ (64,929,774)	$ (56,109,137)	$ (64,929,774)
Balance (in units)	118,824	120,927	118,824
Accumulated Comprehensive
Increase (Decrease) in Partners' Capital
Balance	$ 294,931
Net unrealized (loss) on derivative instruments for interest rate swaps	(165,887)
Balance	$ 129,044		$ 129,044
Subtotal
Increase (Decrease) in Partners' Capital
Balance (in units)	180,225	180,225
Balance (in units)	180,225	180,225	180,225
General Partnership
Increase (Decrease) in Partners' Capital
Balance	$ (600,191)	$ (491,512)
Balance (in units)	1,802	1,802
Distribution to Partners	$ (57,044)	$ (58,211)
Stock Buyback	$ (9,443)	(13,375)
Stock Buyback (in units)	(4.31)
Net income	$ 17,544	3,424
Balance	$ (649,134)	$ (559,674)	$ (649,134)
Balance (in units)	1,802	1,802	1,802
Treasury Units
Increase (Decrease) in Partners' Capital
Balance (in units)	60,970	58,709
Stock Buyback (in units)	431	589
Balance (in units)	(61,401)	59,298	(61,401)
Class A
Increase (Decrease) in Partners' Capital
Balance	$ (48,160,462)	$ (39,462,357)
Balance (in units)	144,180	144,180
Distribution to Partners	$ (4,563,508)	$ (4,656,907)
Stock Buyback	(755,666)	(1,070,321)
Net income	1,403,500	273,935
Balance	$ (52,076,136)	$ (44,915,650)	$ (52,076,136)
Balance (in units)	144,180	144,180	144,180
Class B
Increase (Decrease) in Partners' Capital
Balance	$ (11,403,635)	$ (9,338,738)
Balance (in units)	34,243	34,243
Distribution to Partners	$ (1,083,833)	$ (1,106,016)
Stock Buyback	(179,411)	(254,118)
Net income	333,331	65,059
Balance	$ (12,333,548)	$ (10,633,813)	$ (12,333,548)
Balance (in units)	34,243	34,243	34,243