CONSOLIDATED STATEMENTS OF CHANGES IN PARTNER'S CAPITAL - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Increase (Decrease) in Partners' Capital
Balance			$ (59,869,357)	$ (49,292,607)
Balance (in units)			119,255	121,516
Distribution to Partners			$ (7,128,758)	$ (6,976,595)
Stock Buyback			$ (1,289,374)	$ (3,688,961)
Stock Buyback (in units)			(594)	(1,574)
Net income (loss)	$ 2,224,604	$ 242,985	$ 3,979,341	$ 585,401
Net unrealized gain on derivative instruments for interest rate swaps	168,002		2,115	0
Balance	$ (64,306,033)	$ (59,372,762)	$ (64,306,033)	$ (59,372,762)
Balance (in units)	118,661	119,942	118,661	119,942
Accumulated Comprehensive
Increase (Decrease) in Partners' Capital
Balance			$ 294,931
Net unrealized gain on derivative instruments for interest rate swaps			2,115
Balance	$ 297,046		$ 297,046
Subtotal
Increase (Decrease) in Partners' Capital
Balance (in units)			180,225	180,225
Balance (in units)	180,225	180,225	180,225	180,225
Class A
Increase (Decrease) in Partners' Capital
Balance			$ (48,160,462)	$ (39,462,357)
Balance (in units)			144,180	144,180
Distribution to Partners			$ (5,703,006)	$ (5,581,276)
Stock Buyback			(1,031,739)	(2,951,569)
Net income (loss)			3,183,473	468,321
Balance	$ (51,711,734)	$ (47,526,881)	$ (51,711,734)	$ (47,526,881)
Balance (in units)	144,180	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			$ (1,354,464)	$ (1,325,553)
Stock Buyback			(244,753)	(700,523)
Net income (loss)			756,075	111,226
Balance	$ (12,246,777)	$ (11,253,588)	$ (12,246,777)	$ (11,253,588)
Balance (in units)	34,243	34,243	34,243	34,243
General Partnership
Increase (Decrease) in Partners' Capital
Balance			$ (600,191)	$ (491,512)
Balance (in units)			1,802	1,802
Distribution to Partners			$ (71,288)	$ (69,766)
Stock Buyback			$ (12,882)	(36,869)
Stock Buyback (in units)			(6)
Net income (loss)			$ 39,793	5,854
Balance	$ (644,568)	$ (592,293)	$ (644,568)	$ (592,293)
Balance (in units)	1,802	1,802	1,802	1,802
Treasury Units
Increase (Decrease) in Partners' Capital
Balance (in units)			60,970	58,709
Stock Buyback (in units)			594	1,574
Balance (in units)	61,564	60,283	61,564	60,283