Fair Value Measurement - Schedule of assets measured at fair value on a recurring basis (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Cash equivalents:
Total cash equivalents	$ 34,972	$ 33,562
Short-term investments:
Total short-term investments	0	5,969
Total assets measured at fair value	34,972	39,531
Liabilities:
Warrant liability	66	43
Earnout liability	34	93
Total liabilities measured at fair value	100	136
US Government Agencies Debt Securities [Member]
Short-term investments:
Total short-term investments		5,969
Money market fund
Cash equivalents:
Total cash equivalents	34,972	33,562
Level 1
Cash equivalents:
Total cash equivalents	34,972	33,562
Short-term investments:
Total short-term investments	0	0
Total assets measured at fair value	34,972	33,562
Liabilities:
Warrant liability	0	0
Earnout liability	0	0
Total liabilities measured at fair value	0	0
Level 1 | US Government Agencies Debt Securities [Member]
Short-term investments:
Total short-term investments		0
Level 1 | Money market fund
Cash equivalents:
Total cash equivalents	34,972	33,562
Level 2
Cash equivalents:
Total cash equivalents	0	0
Short-term investments:
Total short-term investments	0	5,969
Total assets measured at fair value	0	5,969
Liabilities:
Warrant liability	66	43
Earnout liability	0	0
Total liabilities measured at fair value	66	43
Level 2 | US Government Agencies Debt Securities [Member]
Short-term investments:
Total short-term investments		5,969
Level 2 | Money market fund
Cash equivalents:
Total cash equivalents	0	0
Level 3
Cash equivalents:
Total cash equivalents	0	0
Short-term investments:
Total short-term investments	0	0
Total assets measured at fair value	0	0
Liabilities:
Warrant liability	0	0
Earnout liability	34	93
Total liabilities measured at fair value	34	93
Level 3 | US Government Agencies Debt Securities [Member]
Short-term investments:
Total short-term investments		0
Level 3 | Money market fund
Cash equivalents:
Total cash equivalents	$ 0	$ 0