INVESTMENT IN UNCONSOLIDATED AND CONSOLIDATED JOINT VENTURES - Schedule of Condensed Statements of Operations and Balance Sheet Information of Consolidated and Unconsolidated Joint Ventures (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	Mar. 29, 2022	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022	Dec. 31, 2021
Statement of Operations
Equity in Earnings (Loss)		$ 1,161	$ 1,991	$ 4,616	$ 4,867
Non-cash tenant allowance amortization		300	300
Balance Sheet Information
Assets		580,273		580,273			$ 566,791
Equity (Deficit)		480,990	475,529	480,990	475,529	$ 479,077	477,594	$ 464,309	$ 456,511
Equity		31,345		31,345			41,891
Petro Travel Plaza Holdings, LLC
Statement of Operations
Equity in Earnings (Loss)		1,041	2,192	4,128	5,306
Balance Sheet Information
Equity		17,209		17,209			25,441
18-19 West, LLC
Statement of Operations
Equity in Earnings (Loss)		0	(7)	0	(31)
TRCC/Rock Outlet Center, LLC
Statement of Operations
Equity in Earnings (Loss)		(376)	(472)	(1,256)	(1,161)
Non-cash tenant allowance amortization				900	900
Balance Sheet Information
Equity		9,723		9,723			7,279
TRC-MRC 1, LLC
Statement of Operations
Equity in Earnings (Loss)		187	29	413	26
Balance Sheet Information
Equity		0		0			0
TRC-MRC 2, LLC
Statement of Operations
Equity in Earnings (Loss)		341	171	1,042	512
Balance Sheet Information
Equity		0		0			0
TRC-MRC 3, LLC
Statement of Operations
Equity in Earnings (Loss)		33	78	235	220
Balance Sheet Information
Equity		134		134			386
TRC-MRC 4, LLC
Statement of Operations
Equity in Earnings (Loss)		(59)	0	75	(5)
Balance Sheet Information
Equity		0		0			4,485
TRC-MRC 5, LLC
Statement of Operations
Equity in Earnings (Loss)		(6)	0	(21)	0
Balance Sheet Information
Equity		4,279		4,279			4,300
Petro Travel Plaza Holdings, LLC
Statement of Operations
Revenues		44,976	49,108	120,002	136,905
Earnings (Loss)		1,736	3,653	6,880	8,843
Balance Sheet Information
Assets		71,890		71,890			84,225
Debt		(12,746)		(12,746)			(13,318)
Equity (Deficit)		49,349		49,349			63,069
18-19 West, LLC
Statement of Operations
Revenues		0	0	0	0
Earnings (Loss)		0	(16)	0	(63)
TRCC/Rock Outlet Center, LLC
Statement of Operations
Revenues		1,740	1,415	4,734	4,355
Earnings (Loss)		(753)	(944)	(2,512)	(2,322)
Balance Sheet Information
Assets		57,447		57,447			59,196
Debt		(20,924)		(20,924)			(27,707)
Equity (Deficit)		35,572		35,572			30,684
TRC-MRC 1, LLC
Statement of Operations
Revenues		1,110	805	3,229	2,445
Earnings (Loss)		373	60	826	54
Balance Sheet Information
Assets		25,152		25,152			24,085
Debt		(22,308)		(22,308)			(22,787)
Equity (Deficit)		1,338		1,338			1,042
TRC-MRC 2, LLC
Statement of Operations
Revenues		1,647	1,008	4,468	3,064
Earnings (Loss)		683	342	2,084	1,024
Balance Sheet Information
Assets		19,095		19,095			18,398
Debt		(22,110)		(22,110)			(22,612)
Equity (Deficit)		(1,944)		(1,944)			(3,939)
TRC-MRC 3, LLC
Statement of Operations
Revenues		1,138	1,065	3,270	3,098
Earnings (Loss)		68	156	471	440
Balance Sheet Information
Assets		36,040		36,040			36,608
Debt		(33,847)		(33,847)			(34,494)
Equity (Deficit)		3,555		3,555			2,690
TRC-MRC 4, LLC
Statement of Operations
Revenues		1,746	0	5,281	0
Earnings (Loss)		(120)	0	149	(11)
Balance Sheet Information
Assets		50,923		50,923			50,497
Debt		(61,993)		(61,993)			(40,130)
Equity (Deficit)		(8,867)		(8,867)			8,974
TRC-MRC 5, LLC
Statement of Operations
Revenues		0	0	0	0
Earnings (Loss)	$ 3,012	(12)	0	(42)	0
Balance Sheet Information
Assets		34,843		34,843			8,602
Debt		(25,049)		(25,049)			0
Equity (Deficit)		8,558		8,558			0
Total
Statement of Operations
Revenues		52,357	53,401	140,984	149,867
Earnings (Loss)		1,975	3,251	7,856	7,965
Balance Sheet Information
Assets		295,390		295,390			281,611
Debt		(198,977)		(198,977)			(161,048)
Equity (Deficit)		87,561		87,561			102,520
Centennial
Statement of Operations
Revenues		15	55	190	379
Earnings (Loss)		(84)	$ (157)	(46)	$ 18
Balance Sheet Information
Assets		104,309		104,309			102,984
Debt		0		0			0
Equity (Deficit)		$ 103,963		$ 103,963			$ 102,689