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Income Taxes - Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Tax Rate Reconciliation
Tax benefit at federal statutory rate	$ (13,701)	$ (15,995)	$ (6,996)
State taxes	(3,133)	(2,208)	(494)
Research and development credits	(419)	(925)	(1,793)
Foreign operations taxed at different rates	0	0	78
Stock-based compensation	1,930	1,967	239
Other nondeductible items	(108)	438	(238)
Executive compensation	306	152	80
Change in valuation allowance	15,159	16,640	9,400
Provision for income taxes	$ 34	$ 69	$ 276

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