Segment Information - Geographical Revenue, Segment Operating Loss and Total Asset Information (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023 USD ($) item	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($) segment item	Sep. 30, 2022 USD ($)	Sep. 12, 2023 Center	Dec. 31, 2022 USD ($)
Revenue
Total revenue	$ 7,468	$ 10,736	$ 22,706	$ 48,381
Operating income (loss)
Total operating loss (including impairment)	(10,476)	(7,654)	(21,488)	(17,872)
Total depreciation & amortization	590	1,564	1,770	4,329
Total Impairment / loss on disposal of assets	6,798	1,040	6,816	988
Total capital expenditures	1,760	5,472	1,760	5,472
Assets
Total long-lived assets	12,217		12,217			$ 18,794
Total assets	$ 44,550		$ 44,550			70,426
Number of reportable segments | segment			3
Naples Wax LLC
Assets
Number of High- Performing Locations	3		3		3
XpresSpa
Revenue
Total revenue	$ 4,955	3,557	$ 14,682	9,490
Operating income (loss)
Total operating loss (including impairment)	(2,947)	(2,508)	(8,901)	(8,921)
Total depreciation & amortization	421	364	1,275	1,065
Total Impairment / loss on disposal of assets	1,460		1,468
Total capital expenditures	1,596	1,413	1,596	1,413
Assets
Total long-lived assets	9,514		9,514			11,851
Total assets	17,626		17,626			21,135
XpresTest
Revenue
Total revenue	2,322	6,754	7,541	37,781
Operating income (loss)
Total operating loss (including impairment)	(5,267)	(1,885)	(5,067)	1,831
Total depreciation & amortization	91	662	260	1,954
Total Impairment / loss on disposal of assets	5,338	1,040	5,348	988
Total capital expenditures	80	675	80	675
Assets
Total long-lived assets	118		118			4,220
Total assets	1,935		1,935			11,198
Treat
Revenue
Total revenue	191	425	483	1,110
Operating income (loss)
Total operating loss (including impairment)	28	(1,282)	(776)	(4,038)
Total depreciation & amortization	66	520	198	1,287
Total capital expenditures	56	3,329	56	3,329
Assets
Total long-lived assets	2,118		2,118			2,314
Total assets	4,016		4,016			3,186
Corporate and Other
Operating income (loss)
Total operating loss (including impairment)	(2,290)	(1,979)	(6,744)	(6,744)
Total depreciation & amortization	12	18	37	23
Total capital expenditures	28	$ 55	28	$ 55
Assets
Total long-lived assets	467		467			409
Total assets	$ 20,973		$ 20,973			$ 34,907