Segment Reporting (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Segment Reporting Information
Revenue	$ 111,264,000	$ 100,940,000	$ 329,526,000	$ 234,769,000
Adjusted EBITDA	(2,325,000)	(1,807,000)	(6,307,000)	(6,124,000)
Depreciation and amortization	(1,436,000)	(931,000)	(3,839,000)	(1,778,000)
Other (income) expense, net	115,000	(102,000)	804,000	(190,000)
Income tax expense (benefit)	0.0	(210,000)	185,000	(2,820,000)
Stock-based compensation	2,123,000	770,000	6,470,000	2,833,000
Transaction-related costs	13,000	177,000	73,000	1,140,000
Net loss	(6,012,000)	(3,373,000)	(17,678,000)	(8,865,000)
Technology
Segment Reporting Information
Revenue	702,000	679,000	2,003,000	1,278,000
Real Estate Brokerage
Segment Reporting Information
Revenue	104,977,000	95,300,000	311,074,000	224,702,000
Mortgage
Segment Reporting Information
Revenue	2,839,000	2,623,000	8,345,000	4,125,000
Corporate and other services
Segment Reporting Information
Revenue	2,746,000	2,338,000	8,104,000	4,664,000
Operating segments
Segment Reporting Information
Adjusted EBITDA	(202,000)	154,000	494,000	(1,369,000)
Operating segments | Technology
Segment Reporting Information
Adjusted EBITDA	(372,000)	56,000	(1,091,000)	(566,000)
Operating segments | Real Estate Brokerage
Segment Reporting Information
Adjusted EBITDA	576,000	199,000	3,311,000	188,000
Operating segments | Mortgage
Segment Reporting Information
Adjusted EBITDA	(406,000)	(101,000)	(1,726,000)	(991,000)
Eliminated in consolidation | Corporate and other services
Segment Reporting Information
Adjusted EBITDA	$ (2,123,000)	$ (1,961,000)	$ (6,801,000)	$ (4,755,000)