CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Revenues:
Rental and other revenue from real estate properties	$ 10,279	$ 7,709	$ 6,958	$ 7,095	$ 7,029	$ 7,020	$ 6,657	$ 6,745	$ 32,041	$ 27,451
Other income	4	5	3	4	20	293	159	179	16	651
Total revenues	10,283	7,714	6,961	7,099	7,049	7,313	6,816	6,924	32,057	28,102
Expenses:
Real estate operating expenses—including $31 and $32 to related parties	4,515	3,404	3,166	3,117	3,026	3,289	3,004	3,058	14,202	12,377
Interest expense	1,953	1,535	1,609	1,660	1,700	1,731	1,809	1,860	6,757	7,100
General and administrative—including $641 and $761 to related party	3,239	3,114	3,154	3,114	2,647	2,730	2,957	3,367	12,621	11,701
Impairment charge	0	0	520	0	0	3,642	0	0	520	3,642
Depreciation and amortization	3,285	1,787	1,416	1,537	1,595	1,777	1,809	1,561	8,025	6,742
Total expenses	12,992	9,840	9,865	9,428	8,968	13,169	9,579	9,846	42,125	41,562
Total revenues less total expenses	(2,709)	(2,126)	(2,904)	(2,329)	(1,919)	(5,856)	(2,763)	(2,922)	(10,068)	(13,460)
Equity in loss from unconsolidated joint ventures	1,825	(4,196)	(492)	(1,345)	(1,293)	(1,529)	(1,387)	(1,815)	(4,208)	(6,024)
Equity in earnings from sale of unconsolidated joint venture properties	0	34,982	0	0	0	0	0	0	34,982	0
Gain on sale of real estate	0	414	7,279	0	0	0	0	0	7,693	0
Gain on sale of partnership interest	388	0	2,244						2,632	0
Loss on extinguishment of debt	(673)	(902)	0	0	0	0	0	0	(1,575)	0
Income (loss) from continuing operations	(1,169)	28,172	6,127	(3,674)	(3,212)	(7,385)	(4,150)	(4,737)	29,456	(19,484)
Provision for taxes	51	31	67	57	56	65	65	62	206	248
Income (loss) from continuing operations, net of taxes	(1,220)	28,141	6,060	(3,731)	(3,268)	(7,450)	(4,215)	(4,799)	29,250	(19,732)
(Income) attributable to non-controlling interests	(34)	(35)	(33)	(34)	(33)	(34)	(31)	(32)	(136)	(130)
Net income (loss) attributable to common stockholders	$ (1,254)	$ 28,106	$ 6,027	$ (3,765)	$ (3,301)	$ (7,484)	$ (4,246)	$ (4,831)	$ 29,114	$ (19,862)
Weighted average number of shares of common stock outstanding:
Basic (in shares)									17,017,690	17,115,697
Diluted (in shares)									17,084,642	17,115,697
Per share amounts attributable to common stockholders
Basic (in dollars per share)	$ (0.08)	$ 1.55	$ 0.34	$ (0.22)	$ (190)	$ (0.44)	$ (0.25)	$ (0.29)	$ 1.63	$ (1.16)
Diluted (in dollars per share)	$ (0.08)	$ 1.54	$ 0.34	$ (0.22)	$ (190)	$ (0.44)	$ (0.25)	$ (0.29)	$ 1.62	$ (1.16)