Fair Value Measurements - Schedule of Reconciliation of Activity and Changes in Fair Value for Company's Convertible Loans and Redeemable Convertible Preferred Stock Warrant Liability (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($)
Convertible Notes at Fair Value
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	$ 7,715
Borrowings on convertible notes	34
Change in fair value	103
Ending Balance	7,852
SAFE Notes
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	25
Change in fair value	(11)
Ending Balance	14
GEM Derivative Liability
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	11,333
Advances received on share purchase agreement	2,500
Change in fair value	278
Ending Balance	$ 14,111