CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY - USD ($) $ in Thousands	Total	Class A Common Stock	Class B Common Stock	Common Stock Class A Common Stock	Common Stock Class B Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive (Loss) Income	Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2022				4,838,437	2,656,886
Beginning balance at Dec. 31, 2022	$ 316,769			$ 1	$ 0	$ 559,106	$ (3,611)	$ (238,741)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options (in shares)					35,979
Exercise of stock options	156					156
Vesting of restricted stock units (in shares)				84,537
Issuance of common stock under employee stock purchase plan (in shares)				11,514
Issuance of common stock under employee stock purchase plan	233					233
Conversion of Class B shares into Class A common stock (in shares)				65,477	(65,477)
Stock-based compensation	16,339					16,339
Comprehensive income (loss)	(1,438)						(1,438)
Net loss	(95,679)							(95,679)
Ending balance (in shares) at Sep. 30, 2023				4,999,966	2,627,388
Ending balance at Sep. 30, 2023	236,379			$ 1	$ 0	575,833	(5,049)	(334,420)
Beginning balance (in shares) at Jun. 30, 2023				4,940,930	2,627,388
Beginning balance at Jun. 30, 2023	263,846			$ 1	$ 0	570,818	(4,143)	(302,844)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options (in shares)					20,299
Exercise of stock options	78					78
Vesting of restricted stock units (in shares)				38,737
Conversion of Class B shares into Class A common stock (in shares)				20,299	(20,299)
Stock-based compensation	4,938					4,938
Comprehensive income (loss)	(906)						(906)
Net loss	(31,575)							(31,575)
Ending balance (in shares) at Sep. 30, 2023				4,999,966	2,627,388
Ending balance at Sep. 30, 2023	236,379			$ 1	$ 0	575,833	(5,049)	(334,420)
Beginning balance (in shares) at Dec. 31, 2023		5,128,961	2,627,388	5,128,961	2,627,388
Beginning balance at Dec. 31, 2023	$ 185,329			$ 1	$ 0	579,862	(3,335)	(391,199)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options (in shares)	1,251				1,250
Exercise of stock options	$ 52					52
Vesting of restricted stock units (in shares)				160,181
Issuance of common stock under employee stock purchase plan (in shares)				12,245
Issuance of common stock under employee stock purchase plan	130					130
Conversion of Class B shares into Class A common stock (in shares)				86,273	(86,273)
Stock-based compensation	9,120					9,120
Comprehensive income (loss)	355						355
Net loss	(67,640)							(67,640)
Ending balance (in shares) at Sep. 30, 2024		5,387,660	2,542,365	5,387,660	2,542,365
Ending balance at Sep. 30, 2024	127,345			$ 1	$ 0	589,164	(2,981)	(458,839)
Beginning balance (in shares) at Jun. 30, 2024				5,340,904	2,542,365
Beginning balance at Jun. 30, 2024	143,969			$ 1	$ 0	586,490	(4,860)	(437,662)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Vesting of restricted stock units (in shares)				46,756
Stock-based compensation	2,674					2,674
Comprehensive income (loss)	1,880						1,880
Net loss	(21,177)							(21,177)
Ending balance (in shares) at Sep. 30, 2024		5,387,660	2,542,365	5,387,660	2,542,365
Ending balance at Sep. 30, 2024	$ 127,345			$ 1	$ 0	$ 589,164	$ (2,981)	$ (458,839)