Stock-Based Compensation - Stock Options Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2025	Dec. 31, 2024
Number of outstanding options
Balance at beginning (in shares)	2,119,425
Options granted (in shares)	948,446
Options cancelled (in shares)	(72,776)
Options exercised (in shares)	(1)
Balance at the end (in shares)	2,995,094	2,119,425
Vested and expected to vest at the end the period (in shares)	2,995,094
Exercisable at the end of the period (in shares)	1,393,408
Weighted average exercise price
Balance at beginning (in dollars per share)	$ 7.87
Options granted (in dollars per share)	3.72
Options cancelled (in dollars per share)	6.66
Options exercised (in dollars per share)	2.12
Balance at the ending (in dollars per share)	6.58	$ 7.87
Vested and expected to vest at the end the period (in dollars per share)	6.58
Exercisable at the end of the period (in dollars per share)	$ 7.02
Weighted-Average Remaining Contractual Term (in years)
Weighted Average Remaining Contractual Term (in years)	7 years 11 months 15 days	7 years 11 months 23 days
Vested and expected to vest at the end the period (in years)	7 years 11 months 15 days
Exercisable at the end of the period (in years)	6 years 7 months 24 days
Aggregate Intrinsic Value
Beginning balance	$ 751
Options exercised	0
Ending balance	0	$ 751
Vested and expected to vest at the end the period	0
Exercisable at the end of the period	$ 0