CONSOLIDATED STATEMENT OF EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income	Accumulated Deficit	Non- Controlling Interest
Beginning balance at Dec. 31, 2018	$ 203,819	$ 150	$ 223,373	$ 9	$ (20,044)	$ 331
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Distributions - Common Stock	(3,221)				(3,221)
Restricted stock vesting	0	2	(2)
Compensation expense - restricted stock and restricted stock units	365		365
Distributions to non-controlling interests	(46)					(46)
Net loss	(4,213)				(4,247)	34
Other comprehensive income (loss)	(9)			(7)		(2)
Comprehensive income (loss)	(4,222)
Ending balance at Mar. 31, 2019	196,695	152	223,736	2	(27,512)	317
Beginning balance at Dec. 31, 2018	203,819	150	223,373	9	(20,044)	331
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(8,486)
Other comprehensive income (loss)	(24)
Comprehensive income (loss)	(8,510)
Ending balance at Jun. 30, 2019	189,475	152	224,063	(11)	(35,049)	320
Beginning balance at Mar. 31, 2019	196,695	152	223,736	2	(27,512)	317
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Distributions - Common Stock	(3,220)				(3,220)
Compensation expense - restricted stock and restricted stock units	373		373
Distributions to non-controlling interests	(39)					(39)
Shares issued through equity offering program, net	(46)		(46)
Net loss	(4,273)				(4,317)	44
Other comprehensive income (loss)	(15)			(13)		(2)
Comprehensive income (loss)	(4,288)
Ending balance at Jun. 30, 2019	189,475	152	224,063	(11)	(35,049)	320
Beginning balance at Dec. 31, 2019	199,560	156	232,331	(10)	(32,824)	(93)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Distributions - Common Stock	(3,822)				(3,822)
Restricted stock vesting	0	1	(1)
Compensation expense - restricted stock and restricted stock units	438		438
Distributions to non-controlling interests	(89)					(89)
Shares issued through equity offering program, net	12,077	7	12,070
Shares repurchased	(616)		(616)
Net loss	(4,799)				(4,831)	32
Other comprehensive income (loss)	(23)			(20)		(3)
Comprehensive income (loss)	(4,822)
Ending balance at Mar. 31, 2020	202,726	164	244,222	(30)	(41,477)	(153)
Beginning balance at Dec. 31, 2019	199,560	156	232,331	(10)	(32,824)	(93)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(9,014)
Other comprehensive income (loss)	(22)
Comprehensive income (loss)	(9,036)
Ending balance at Jun. 30, 2020	195,151	164	244,683	(28)	(49,545)	(123)
Beginning balance at Mar. 31, 2020	202,726	164	244,222	(30)	(41,477)	(153)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Distributions - Common Stock	(3,822)				(3,822)
Compensation expense - restricted stock and restricted stock units	461		461
Net loss	(4,215)				(4,246)	31
Other comprehensive income (loss)	1			2		(1)
Comprehensive income (loss)	(4,214)
Ending balance at Jun. 30, 2020	$ 195,151	$ 164	$ 244,683	$ (28)	$ (49,545)	$ (123)