CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Common Shares	Paid-in Capital	Accumulated Distributions in Excess of Earnings	Total Beneficial Interest	Noncontrolling Interest in Operating Partnership	Noncontrolling Interest in Partially Owned Properties	Accumulated Other Comprehensive Income (Loss)	Total
Beginning Balance at Dec. 31, 2021		$ 148,562	$ (31,706)	$ 116,856	$ 176,954	$ 2,657	$ (950)	$ 295,517
Beginning Balance (in shares) at Dec. 31, 2021	10,342
Contribution of assets in exchange for the issuance of noncontrolling interest shares					10,180			10,180
Shares/units redeemed		(401)		(401)	(335)			(736)
Shares/units redeemed (in shares)	(18)
Dividends and distributions declared			(3,007)	(3,007)	(5,359)			(8,366)
Dividends reinvested - stock dividend		1,716		1,716				1,716
Dividends reinvested - stock dividend (in shares)	79
Issuance of shares under optional purchase plan		1,313		1,313				1,313
Issuance of shares under optional purchase plan (in shares)	57
Change in fair value of interest rate swaps							6,524	6,524
Net income			1,214	1,214	2,145	30		3,389
Ending balance at Mar. 31, 2022		151,190	(33,499)	117,691	183,585	2,687	5,574	309,537
Ending balance (in shares) at Mar. 31, 2022	10,460
Beginning Balance at Dec. 31, 2021		148,562	(31,706)	116,856	176,954	2,657	(950)	295,517
Beginning Balance (in shares) at Dec. 31, 2021	10,342
Change in fair value of interest rate swaps								10,339
Net income								10,496
Ending balance at Jun. 30, 2022		153,487	(33,968)	119,519	182,621	2,695	9,389	314,224
Ending balance (in shares) at Jun. 30, 2022	10,563
Beginning Balance at Mar. 31, 2022		151,190	(33,499)	117,691	183,585	2,687	5,574	309,537
Beginning Balance (in shares) at Mar. 31, 2022	10,460
Shares/units redeemed		(386)		(386)	(138)			(524)
Shares/units redeemed (in shares)	(18)
Dividends and distributions declared			(3,037)	(3,037)	(5,357)			(8,394)
Dividends reinvested - stock dividend		1,877		1,877				1,877
Dividends reinvested - stock dividend (in shares)	86
Issuance of shares under optional purchase plan		806		806				806
Issuance of shares under optional purchase plan (in shares)	35
Change in fair value of interest rate swaps							3,815	3,815
Net income			2,568	2,568	4,531	8		7,107
Ending balance at Jun. 30, 2022		153,487	(33,968)	119,519	182,621	2,695	9,389	314,224
Ending balance (in shares) at Jun. 30, 2022	10,563
Beginning Balance at Dec. 31, 2022		159,003	(35,007)	123,996	183,048	2,640	13,782	323,466
Beginning Balance (in shares) at Dec. 31, 2022	10,810
Shares/units redeemed		(181)		(181)	(915)			(1,096)
Shares/units redeemed (in shares)	(8)
Dividends and distributions declared			(3,147)	(3,147)	(5,373)			(8,520)
Dividends reinvested - stock dividend		1,962		1,962				1,962
Dividends reinvested - stock dividend (in shares)	90
Issuance of shares under optional purchase plan		1,291		1,291				1,291
Issuance of shares under optional purchase plan (in shares)	56
Change in fair value of interest rate swaps							(2,378)	(2,378)
Net income			(240)	(240)	(408)	(40)		(688)
Ending balance at Mar. 31, 2023		162,075	(38,394)	123,681	176,352	2,600	11,404	314,037
Ending balance (in shares) at Mar. 31, 2023	10,948
Beginning Balance at Dec. 31, 2022		159,003	(35,007)	123,996	183,048	2,640	13,782	323,466
Beginning Balance (in shares) at Dec. 31, 2022	10,810
Change in fair value of interest rate swaps								(355)
Net income								4,041
Ending balance at Jun. 30, 2023		164,043	(35,428)	128,615	167,760	2,551	13,427	312,353
Ending balance (in shares) at Jun. 30, 2023	11,035
Beginning Balance at Mar. 31, 2023		162,075	(38,394)	123,681	176,352	2,600	11,404	314,037
Beginning Balance (in shares) at Mar. 31, 2023	10,948
Shares/units redeemed		(979)		(979)	(1,883)			(2,862)
Shares/units redeemed (in shares)	(45)
Dividends and distributions declared			(3,173)	(3,173)	(5,348)			(8,521)
Dividends reinvested - stock dividend		1,996		1,996				1,996
Dividends reinvested - stock dividend (in shares)	91
Issuance of shares under optional purchase plan		951		951				951
Issuance of shares under optional purchase plan (in shares)	41
Change in fair value of interest rate swaps							2,023	2,023
Net income			6,139	6,139	(1,361)	(49)		4,729
Ending balance at Jun. 30, 2023		$ 164,043	$ (35,428)	$ 128,615	$ 167,760	$ 2,551	$ 13,427	$ 312,353
Ending balance (in shares) at Jun. 30, 2023	11,035