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Fair Value Measurements - Schedule of Assets and Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023	Dec. 31, 2022
Assets:
Short-term investments	$ 69,431	$ 71,230	$ 69,448
Assets	71,181	72,117	69,963
Liabilities:
Liabilities	5,226	2,508	971
Public Warrants
Liabilities:
Warrant liabilities	1,399	1,555
Private Placement Warrants
Liabilities:
Warrant liabilities	2,405	953
Penny Warrants
Liabilities:
Warrant liabilities	1,422
Level 1
Assets:
Short-term investments	842	849	0
Assets	2,592	1,736	515
Liabilities:
Liabilities	1,399	1,555	0
Level 1 | Public Warrants
Liabilities:
Warrant liabilities	1,399	1,555
Level 1 | Private Placement Warrants
Liabilities:
Warrant liabilities	0	0
Level 1 | Penny Warrants
Liabilities:
Warrant liabilities	0
Level 2
Assets:
Short-term investments	68,589	70,381	69,448
Assets	68,589	70,381	69,448
Liabilities:
Liabilities	2,405	953	0
Level 2 | Public Warrants
Liabilities:
Warrant liabilities	0	0
Level 2 | Private Placement Warrants
Liabilities:
Warrant liabilities	2,405	953
Level 2 | Penny Warrants
Liabilities:
Warrant liabilities	0
Level 3
Assets:
Short-term investments	0	0	0
Assets	0	0	0
Liabilities:
Liabilities	1,422	0	971
Level 3 | Public Warrants
Liabilities:
Warrant liabilities	0	0
Level 3 | Private Placement Warrants
Liabilities:
Warrant liabilities	0	0
Level 3 | Penny Warrants
Liabilities:
Warrant liabilities	1,422
Money market mutual funds
Assets:
Money market mutual funds	1,750	887	515
Money market mutual funds | Level 1
Assets:
Money market mutual funds	1,750	887	515
Money market mutual funds | Level 2
Assets:
Money market mutual funds	0	0	0
Money market mutual funds | Level 3
Assets:
Money market mutual funds	$ 0	$ 0	$ 0

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