Leases - Summary of Company's Lease Information (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Lease cost:
Operating lease costs		$ 166	$ 195	$ 360	$ 389
Other information:
Cash paid for operating leases		148	196	349	390
Right-of-use assets obtained in exchange for operating lease liabilities	[1]	$ 1,153	$ 0	$ 1,153	$ 0
Weighted average discount rate for operating leases			8.36%		8.36%	9.94%

[1] The New Seattle Lease Agreement resulted in the recognition of $1,153 in right-of-use assets obtained in exchange for operating lease liabilities as of May 1, 2025. The Company applied a 6.0% discount rate, its estimated incremental borrowing rate for similar secured assets, to determine the present value of the lease payments, as the implicit rate in the lease is not readily determinable. The discount rate was based on information available as of the Commencement Date.