Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenues:
Revenues from rental properties	$ 29,022	$ 24,365	$ 57,307	$ 48,261
Tenant reimbursements	4,461	3,924	7,529	6,917
Interest on notes and mortgages receivable	759	748	1,522	1,507
Total revenues	34,242	29,037	66,358	56,685
Operating expenses:
Property costs	6,429	5,251	11,363	10,061
Impairments	831	914	3,259	4,382
Environmental	1,442	429	2,689	(112)
General and administrative	3,855	3,673	7,442	7,166
Allowance (recoveries) for uncollectible accounts	(119)	(71)	7	61
Depreciation and amortization	5,907	4,394	11,501	8,787
Total operating expenses	18,345	14,590	36,261	30,345
Operating income	15,897	14,447	30,097	26,340
Gain (loss) on dispositions of real estate	3,016	507	3,665	176
Other income, net	224	3,876	588	4,111
Interest expense	(5,314)	(4,279)	(10,365)	(8,359)
Earnings from continuing operations	13,823	14,551	23,985	22,268
Discontinued operations:
Earnings (loss) from discontinued operations	(283)	555	(413)	2,542
Net earnings	$ 13,540	$ 15,106	$ 23,572	$ 24,810
Basic earnings per common share:
Earnings from continuing operations	$ 0.34	$ 0.41	$ 0.59	$ 0.64
Earnings (loss) from discontinued operations	(0.01)	0.02	(0.01)	0.07
Net earnings	0.33	0.43	0.58	0.71
Diluted earnings per common share:
Earnings from continuing operations	0.34	0.41	0.59	0.64
Earnings (loss) from discontinued operations	(0.01)	0.02	(0.01)	0.07
Net earnings	$ 0.33	$ 0.43	$ 0.58	$ 0.71
Weighted average common shares outstanding:
Basic	39,901	34,634	39,806	34,594
Diluted	39,914	34,634	39,817	34,594
Dividends declared per common share	$ 0.32	$ 0.28	$ 0.64	$ 0.56