Fair Value Measurements - Hierarchy for Assets and Liabilities on a Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Payment-dependent notes receivable, noncurrent	$ 7,412	$ 5,593
Payment-dependent notes payable, noncurrent	7,412	5,593
Warrant liabilities	192	9,616
Fair Value, Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Payment-dependent notes receivable, noncurrent	7,412	5,593
Term deposits	1,068	7,694
Total financial assets	93,568	145,640
Payment-dependent notes payable, noncurrent	7,412	5,593
Total financial liabilities	7,604	15,209
Term deposit, real estate lease agreement obligation	900	1,000
Fair Value, Recurring | December 2023 warrants
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Warrant liabilities	45	4,889
Fair Value, Recurring | Private Placement Warrants
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Warrant liabilities	147	4,727
Fair Value, Recurring | Money market funds
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Cash and cash equivalents	56,300	130,132
Fair Value, Recurring | U.S. government treasury bills
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Cash and cash equivalents	21,482
Fair Value, Recurring | Term deposits (less than 90 days)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Cash and cash equivalents	7,306	2,221
Fair Value, Recurring | Level 1
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Payment-dependent notes receivable, noncurrent	0	0
Term deposits	0	0
Total financial assets	77,782	130,132
Payment-dependent notes payable, noncurrent	0	0
Total financial liabilities	0	0
Fair Value, Recurring | Level 1 | December 2023 warrants
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Warrant liabilities	0	0
Fair Value, Recurring | Level 1 | Private Placement Warrants
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Warrant liabilities	0	0
Fair Value, Recurring | Level 1 | Money market funds
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Cash and cash equivalents	56,300	130,132
Fair Value, Recurring | Level 1 | U.S. government treasury bills
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Cash and cash equivalents	21,482
Fair Value, Recurring | Level 1 | Term deposits (less than 90 days)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Cash and cash equivalents	0	0
Fair Value, Recurring | Level 2
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Payment-dependent notes receivable, noncurrent	0	0
Term deposits	1,068	7,694
Total financial assets	8,374	2,221
Payment-dependent notes payable, noncurrent	0	0
Total financial liabilities	45	4,889
Fair Value, Recurring | Level 2 | December 2023 warrants
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Warrant liabilities	45	4,889
Fair Value, Recurring | Level 2 | Private Placement Warrants
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Warrant liabilities	0	0
Fair Value, Recurring | Level 2 | Money market funds
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Cash and cash equivalents	0	0
Fair Value, Recurring | Level 2 | U.S. government treasury bills
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Cash and cash equivalents	0
Fair Value, Recurring | Level 2 | Term deposits (less than 90 days)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Cash and cash equivalents	7,306	2,221
Fair Value, Recurring | Level 3
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Payment-dependent notes receivable, noncurrent	7,412	5,593
Term deposits	0	0
Total financial assets	7,412	5,593
Payment-dependent notes payable, noncurrent	7,412	5,593
Total financial liabilities	7,559	10,320
Fair Value, Recurring | Level 3 | December 2023 warrants
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Warrant liabilities	0	0
Fair Value, Recurring | Level 3 | Private Placement Warrants
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Warrant liabilities	147	4,727
Fair Value, Recurring | Level 3 | Money market funds
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Cash and cash equivalents	0	0
Fair Value, Recurring | Level 3 | U.S. government treasury bills
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Cash and cash equivalents	0
Fair Value, Recurring | Level 3 | Term deposits (less than 90 days)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Cash and cash equivalents	$ 0	$ 0