CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Income Statement [Abstract]
Net revenue	$ 32,989,000	$ 42,996,000	$ 104,787,000	$ 133,905,000
Cost of revenue	18,748,000	23,921,000	59,992,000	70,319,000
Gross profit	14,241,000	19,075,000	44,795,000	63,586,000
Operating expense:
Selling, general, and administrative expense	21,678,000	30,967,000	71,046,000	104,226,000
Marketing expense	11,719,000	9,855,000	32,262,000	29,354,000
Impairment expense	729,000	0	729,000	0
Restructuring expense	0	35,000	0	1,788,000
Total operating expense	34,126,000	40,857,000	104,037,000	135,368,000
Loss from operations	(19,885,000)	(21,782,000)	(59,242,000)	(71,782,000)
Net loss from the sales of businesses	0	(236,000)	0	(430,000)
Interest (expense) income	(370,000)	744,000	9,000	2,992,000
Other income	3,000	183,000	1,752,000	2,457,000
Loss before provision for income taxes	(20,252,000)	(21,091,000)	(57,481,000)	(66,763,000)
Income tax provision	(72,000)	(86,000)	(219,000)	(877,000)
Net loss	$ (20,324,000)	$ (21,177,000)	$ (57,700,000)	$ (67,640,000)
Net loss per share data:
Net loss per share attributable to common stockholders, basic (in dollars per share)	$ (2.49)	$ (2.68)	$ (7.13)	$ (8.64)
Net loss per share attributable to common stockholders, diluted (in dollars per share)	$ (2.49)	$ (2.68)	$ (7.13)	$ (8.64)
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic (in shares)	8,167,465	7,900,246	8,092,579	7,831,158
Weighted-average shares used in computing net loss per share attributable to common stockholders, diluted (in shares)	8,167,465	7,900,246	8,092,579	7,831,158
Other comprehensive income (loss):
Foreign currency translation (loss) gain	$ (662,000)	$ 1,880,000	$ 1,922,000	$ 355,000
Total comprehensive loss	$ (20,986,000)	$ (19,297,000)	$ (55,778,000)	$ (67,285,000)