CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Preferred Stock	Common Stock	Additional Paid-in Capital	Accumulated Distributions and Net Loss	Total Stockholders' Equity	Noncontrolling Interests
Beginning balance (in shares) at Dec. 31, 2018		1	17,712
Beginning balance at Dec. 31, 2018	$ 248,481	$ 0	$ 18	$ 165,084	$ (95,162)	$ 69,940	$ 178,541
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common shares (in shares)			6
Issuance of common shares	76			76		76
Purchase of noncontrolling interest (in shares)			700
Purchase of non-controlling interest	(68)			8,790		8,790	(8,858)
Dividends and distributions (cash)	(10,648)				(6,366)	(6,366)	(4,282)
Net income (loss)	(571)				92	92	(663)
Ending balance (in shares) at Jun. 30, 2019		1	18,418
Ending balance at Jun. 30, 2019	237,270	$ 0	$ 18	173,950	(101,436)	72,532	164,738
Beginning balance (in shares) at Mar. 31, 2019		1	18,418
Beginning balance at Mar. 31, 2019	243,667	$ 0	$ 18	174,056	(97,968)	76,106	167,561
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common shares	(106)			(106)		(106)
Dividends and distributions (cash)	(5,360)				(3,225)	(3,225)	(2,135)
Net income (loss)	(931)				(243)	(243)	(688)
Ending balance (in shares) at Jun. 30, 2019		1	18,418
Ending balance at Jun. 30, 2019	237,270	$ 0	$ 18	173,950	(101,436)	72,532	164,738
Beginning balance (in shares) at Dec. 31, 2019		1	18,418
Beginning balance at Dec. 31, 2019	225,006	$ 0	$ 18	174,019	(109,406)	64,631	160,375
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends and distributions (cash)	(10,726)				(6,443)	(6,443)	(4,283)
Net income (loss)	4,590				2,476	2,476	2,114
Ending balance (in shares) at Jun. 30, 2020		1	18,418
Ending balance at Jun. 30, 2020	218,870	$ 0	$ 18	174,019	(113,373)	60,664	158,206
Beginning balance (in shares) at Mar. 31, 2020		1	18,418
Beginning balance at Mar. 31, 2020	221,529	$ 0	$ 18	174,019	(111,461)	62,576	158,953
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends and distributions (cash)	(5,365)				(3,220)	(3,220)	(2,145)
Net income (loss)	2,706				1,308	1,308	1,398
Ending balance (in shares) at Jun. 30, 2020		1	18,418
Ending balance at Jun. 30, 2020	$ 218,870	$ 0	$ 18	$ 174,019	$ (113,373)	$ 60,664	$ 158,206