CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Thousands	Total	Common Class A	Common Class T	Total Stockholders' Equity	Common Stock	Common Stock Common Class A	Common Stock Common Class T	Additional Paid-in Capital	Cumulative Distributions and Net Losses	Accumulated Other Comprehensive (Loss) Income	Noncontrolling Interests
Balance (in shares) at Dec. 31, 2016						14,074,793	6,046,591
Balance at Dec. 31, 2016	$ 159,968			$ 148,294		$ 140	$ 61	$ 176,021	$ (27,817)	$ (111)	$ 11,674
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(3,298)			(3,272)					(3,272)		(26)
Other comprehensive loss	313			313						313
Issuance of common stock (in shares)						2,641,090	4,822,456
Issuance of common stock	71,916			71,916		$ 27	$ 48	71,841
Stock dividends issued (in shares)						308,857	184,606
Stock dividends issued	0			0		$ 3	$ 2	4,643	(4,648)
Redemptions of common stock (in shares)						(135,800)	(21,758)
Redemptions of common stock	(1,359)			(1,359)		$ (1)	$ (1)	(1,357)
Transfers to redeemable common stock	(490)			(490)				(490)
Distributions declared	(3,920)			(3,920)					(3,920)
Commissions on stock sales, dealer manager fees and stockholder servicing fees to affiliate	(4,913)			(4,913)				(4,913)
Other offering costs	(668)			(668)				(668)
Noncontrolling interests contributions	1,774			0							1,774
Distributions to noncontrolling interests	(25)			0							(25)
Balance (in shares) at Dec. 31, 2017						16,888,940	11,031,895
Balance at Dec. 31, 2017	219,298			205,901		$ 169	$ 110	245,077	(39,657)	202	13,397
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(26,599)			(23,508)					(23,508)		(3,091)
Other comprehensive loss	(113)			(113)						(113)
Issuance of common stock (in shares)						1,100,169	984,685
Issuance of common stock	19,995			19,995		$ 11	$ 10	19,974
Stock dividends issued (in shares)						350,547	233,830
Stock dividends issued	0			0		$ 3	$ 2	5,284	(5,289)
Redemptions of common stock (in shares)						(236,219)	(42,168)
Redemptions of common stock	(2,441)			(2,441)		$ (2)		(2,439)
Transfers to redeemable common stock	(417)			(417)				(417)
Distributions declared	(5,007)			(5,007)					(5,007)
Commissions on stock sales, dealer manager fees and stockholder servicing fees to affiliate	(965)			(965)				(965)
Other offering costs	(175)			(175)				(175)
Noncontrolling interests contributions	1,362			0							1,362
Distributions to noncontrolling interests	(500)			0							(500)
Balance (in shares) at Dec. 31, 2018		18,103,437	12,208,242			18,103,437	12,208,242
Balance at Dec. 31, 2018	204,438			193,270		$ 181	$ 122	266,339	(73,461)	89	11,168
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(9,086)			(7,499)					(7,499)		(1,587)
Other comprehensive loss	(89)			(89)						(89)
Issuance of common stock (in shares)						121,175	108,704
Issuance of common stock	2,218			2,218		$ 1	$ 1	2,216
Redemptions of common stock (in shares)						(275,418)	(44,019)
Redemptions of common stock	(3,048)			(3,048)	$ (3,000)	$ (3)		(3,045)
Transfers from redeemable common stock	810			810				810
Distributions declared	(3,379)			(3,379)					(3,379)
Other offering costs	(10)			(10)				(10)
Noncontrolling interests contributions	239			0							239
Distributions to noncontrolling interests	(1,851)			0							(1,851)
Balance (in shares) at Dec. 31, 2019		17,949,194	12,272,927			17,949,194	12,272,927
Balance at Dec. 31, 2019	$ 190,242			$ 182,273		$ 179	$ 123	$ 266,310	$ (84,339)	$ 0	$ 7,969