Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Current assets:
Cash and cash equivalents	$ 98,086	$ 88,932
Prepaid expenses	521	743
Other current assets	201	218
Total current assets	98,808	89,893
Other assets	5	6
Total assets	98,813	89,899
Current liabilities:
Accounts payable and accrued expenses	6,821	6,557
Total current liabilities	6,881	6,641
Contract liabilities	1,830	18,669
Total liabilities	8,854	25,462
Commitments and contingencies
Stockholders’ equity:
Additional paid-in capital	392,478	391,090
Accumulated deficit	(302,558)	(326,692)
Total stockholders’ equity	89,959	64,437
Total liabilities and stockholders’ equity	98,813	89,899
Related Party
Current liabilities:
Warrant liability, related party	60	84
Nonrelated Party
Current liabilities:
Warrant liability	143	152
Class A Common Stock
Stockholders’ equity:
Common stock value	39	39
Class B Common Stock
Stockholders’ equity:
Common stock value	$ 0	$ 0

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital.