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, 2023				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)					1,250
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
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
Ending balance at Sep. 30, 2024	127,345			$ 1	$ 0	589,164	(2,981)	(458,839)
Beginning balance (in shares) at Dec. 31, 2024		5,456,072	2,542,365	5,456,072	2,542,365
Beginning balance at Dec. 31, 2024	$ 101,685			$ 1	$ 0	591,882	(5,681)	(484,517)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options (in shares)	2,756				2,756
Exercise of stock options	$ 4					4
Vesting of restricted stock units (in shares)				196,466
Issuance of common stock under employee stock purchase plan (in shares)				15,433
Issuance of common stock under employee stock purchase plan	66					66
Conversion of Class B shares into Class A common stock (in shares)				2,781	(2,781)
Stock-based compensation	5,955					5,955
Comprehensive income (loss)	1,922						1,922
Net loss	(57,700)							(57,700)
Ending balance (in shares) at Sep. 30, 2025		5,670,752	2,542,340	5,670,752	2,542,340
Ending balance at Sep. 30, 2025	51,932			$ 1	$ 0	597,907	(3,759)	(542,217)
Beginning balance (in shares) at Jun. 30, 2025				5,604,152	2,542,365
Beginning balance at Jun. 30, 2025	71,361			$ 1	$ 0	596,350	(3,097)	(521,893)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options (in shares)					464
Exercise of stock options	1					1
Vesting of restricted stock units (in shares)				66,111
Conversion of Class B shares into Class A common stock (in shares)				489	(489)
Stock-based compensation	1,556					1,556
Comprehensive income (loss)	(662)						(662)
Net loss	(20,324)							(20,324)
Ending balance (in shares) at Sep. 30, 2025		5,670,752	2,542,340	5,670,752	2,542,340
Ending balance at Sep. 30, 2025	$ 51,932			$ 1	$ 0	$ 597,907	$ (3,759)	$ (542,217)