Operating Segments - Profit by Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Segment Reporting Information [Line Items]
Revenues	$ 8,319	$ 10,034	$ 23,876	$ 32,657
Total profit from segments	(2,765)	(4,558)	(9,738)	(12,009)
Operating segments
Segment Reporting Information [Line Items]
Total profit from segments	2,869	4,018	9,769	13,683
Operating segments | Multifamily Segment
Segment Reporting Information [Line Items]
Revenues	2,850	3,703	9,024	11,068
Operating expenses	(1,966)	(2,072)	(5,395)	(6,306)
Profit from segment	884	1,631	3,629	4,762
Operating segments | Commercial Segment
Segment Reporting Information [Line Items]
Revenues	4,720	5,925	13,286	19,115
Operating expenses	(2,735)	(3,538)	(7,146)	(10,194)
Profit from segment	$ 1,985	$ 2,387	$ 6,140	$ 8,921