CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Income Statement [Abstract]
Net revenue	$ 42,996	$ 57,244	$ 133,905	$ 182,075
Cost of revenue	23,921	32,351	70,319	105,218
Gross profit	19,075	24,893	63,586	76,857
Operating expense:
Selling, general, and administrative expense	30,967	43,545	104,226	132,516
Marketing expense	9,855	10,176	29,354	34,192
Restructuring expense	35	1,234	1,788	5,514
Total operating expense	40,857	54,955	135,368	172,222
Loss from operations	(21,782)	(30,062)	(71,782)	(95,365)
Net loss from the sales of businesses	(236)	(2,346)	(430)	(2,346)
Interest income	744	1,120	2,992	2,961
Other income (expense)	183	(153)	2,457	(298)
Loss before provision for income taxes	(21,091)	(31,441)	(66,763)	(95,048)
Income tax provision	(86)	(134)	(877)	(631)
Net loss	$ (21,177)	$ (31,575)	$ (67,640)	$ (95,679)
Net loss per share data:
Net loss per share attributable to common stockholders, basic (in dollars per share)	$ (2.68)	$ (4.15)	$ (8.64)	$ (12.67)
Net loss per share attributable to common stockholders, diluted (in dollars per share)	$ (2.68)	$ (4.15)	$ (8.64)	$ (12.67)
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic (in shares)	7,900,246	7,605,191	7,831,158	7,550,254
Weighted-average shares used in computing net loss per share attributable to common stockholders, diluted (in shares)	7,900,246	7,605,191	7,831,158	7,550,254
Other comprehensive income (loss):
Foreign currency translation income (loss)	$ 1,880	$ (906)	$ 355	$ (1,438)
Total comprehensive loss	$ (19,297)	$ (32,481)	$ (67,285)	$ (97,117)