Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Revenues:
Revenues from rental properties	$ 43,658,000	$ 40,814,000	$ 86,025,000	$ 79,797,000
Interest on notes and mortgages receivable	1,040,000	365,000	1,693,000	702,000
Total revenues	44,698,000	41,179,000	87,718,000	80,499,000
Operating expenses:
Property costs	4,811,000	5,324,000	9,511,000	9,950,000
Impairments	2,462,000	391,000	2,984,000	1,429,000
Environmental	343,000	(15,910,000)	664,000	(16,051,000)
General and administrative	5,912,000	5,260,000	12,197,000	10,388,000
Depreciation and amortization	10,864,000	9,924,000	21,292,000	19,552,000
Total operating expenses	24,392,000	4,989,000	46,648,000	25,268,000
Gain on dispositions of real estate	316,000	1,149,000	903,000	7,302,000
Operating income	20,622,000	37,339,000	41,973,000	62,533,000
Other income, net	6,000	248,000	294,000	340,000
Interest expense	(7,104,000)	(6,907,000)	(14,618,000)	(13,444,000)
Loss on extinguishment of debt			(43,000)
Net earnings	$ 13,524,000	$ 30,680,000	$ 27,606,000	$ 49,429,000
Basic earnings per common share:
Net earnings	$ 0.26	$ 0.64	$ 0.55	$ 1.03
Diluted earnings per common share:
Net earnings	$ 0.26	$ 0.64	$ 0.55	$ 1.03
Weighted average common shares outstanding:
Basic	49,615	46,733	48,309	46,727
Diluted	49,989	46,756	48,576	46,746