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, 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 (loss)			(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								1,984
Net income (loss)								7,456
Ending balance at Sep. 30, 2023		166,667	(41,736)	124,931	168,635	2,581	15,766	311,913
Ending balance (in shares) at Sep. 30, 2023	11,152
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		(978)		(978)	(1,884)			(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 (loss)			1,771	1,771	3,007	(49)		4,729
Ending balance at Jun. 30, 2023		164,044	(39,796)	124,248	172,127	2,551	13,427	312,353
Ending balance (in shares) at Jun. 30, 2023	11,035
Shares issued under trustee compensation plan		72		72				72
Shares issued under trustee compensation plan (in shares)	3
Shares/units redeemed		(230)		(230)	(267)			(497)
Shares/units redeemed (in shares)	(11)
Dividends and distributions declared			(3,207)	(3,207)	(5,344)			(8,551)
Dividends reinvested - stock dividend		1,889		1,889				1,889
Dividends reinvested - stock dividend (in shares)	86
Issuance of shares under optional purchase plan		892		892				892
Issuance of shares under optional purchase plan (in shares)	39
Change in fair value of interest rate swaps							2,339	2,339
Net income (loss)			1,267	1,267	2,119	30		3,416
Ending balance at Sep. 30, 2023		166,667	(41,736)	124,931	168,635	2,581	15,766	311,913
Ending balance (in shares) at Sep. 30, 2023	11,152
Beginning Balance at Dec. 31, 2023		168,975	(44,880)	124,095	163,308	2,555	11,362	301,320
Beginning Balance (in shares) at Dec. 31, 2023	11,257
Shares/units redeemed		(1,108)		(1,108)	(410)			(1,518)
Shares/units redeemed (in shares)	(51)
Dividends and distributions declared			(3,257)	(3,257)	(5,338)			(8,595)
Dividends reinvested - stock dividend		1,899		1,899				1,899
Dividends reinvested - stock dividend (in shares)	87
Issuance of shares under optional purchase plan		843		843				843
Issuance of shares under optional purchase plan (in shares)	37
Change in fair value of interest rate swaps							1,517	1,517
Net income (loss)			1,740	1,740	2,850	52		4,642
Ending balance at Mar. 31, 2024		170,609	(46,397)	124,212	160,410	2,607	12,879	300,108
Ending balance (in shares) at Mar. 31, 2024	11,330
Beginning Balance at Dec. 31, 2023		168,975	(44,880)	124,095	163,308	2,555	11,362	301,320
Beginning Balance (in shares) at Dec. 31, 2023	11,257
Change in fair value of interest rate swaps								(471)
Net income (loss)								14,908
Ending balance at Sep. 30, 2024		179,100	(48,995)	130,105	158,884	9,500	10,890	309,379
Ending balance (in shares) at Sep. 30, 2024	11,698
Beginning Balance at Mar. 31, 2024		170,609	(46,397)	124,212	160,410	2,607	12,879	300,108
Beginning Balance (in shares) at Mar. 31, 2024	11,330
Contribution of assets in exchange for the issuance of noncontrolling interest shares					7,397			7,397
Shares/units redeemed		(2,886)		(2,886)	(2,910)			(5,796)
Shares/units redeemed (in shares)	(132)
Dividends and distributions declared			(3,251)	(3,251)	(5,392)			(8,643)
Dividends reinvested - stock dividend		1,837		1,837				1,837
Dividends reinvested - stock dividend (in shares)	84
Issuance of shares under optional purchase plan		629		629				629
Issuance of shares under optional purchase plan (in shares)	27
Contributions from consolidated real estate entity noncontrolling interests						7,041		7,041
Change in fair value of interest rate swaps							2,908	2,908
Net income (loss)			2,320	2,320	3,836	31		6,187
Ending balance at Jun. 30, 2024		170,189	(47,328)	122,861	163,341	9,679	15,787	311,668
Ending balance (in shares) at Jun. 30, 2024	11,309
Shares issued under trustee compensation plan		72		72				72
Shares issued under trustee compensation plan (in shares)	3
Shares/units redeemed		(623)		(623)	(1,831)			(2,454)
Shares/units redeemed (in shares)	(29)
Dividends and distributions declared			(3,363)	(3,363)	(5,368)			(8,731)
Dividends reinvested - stock dividend		1,843		1,843				1,843
Dividends reinvested - stock dividend (in shares)	84
Issuance of shares under optional purchase plan		676		676				676
Issuance of shares under optional purchase plan (in shares)	29
Contributions from consolidated real estate entity noncontrolling interests						178		178
Issuance of common shares		6,943		6,943				6,943
Issuance of common shares (in shares)	302
Change in fair value of interest rate swaps							(4,897)	(4,897)
Net income (loss)			1,696	1,696	2,742	(357)		4,081
Ending balance at Sep. 30, 2024		$ 179,100	$ (48,995)	$ 130,105	$ 158,884	$ 9,500	$ 10,890	$ 309,379
Ending balance (in shares) at Sep. 30, 2024	11,698