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Income Taxes - Deferred Income Tax Assets and Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Deferred tax assets      
Net operating losses $ 34,277 $ 31,710  
Research credits 769 3,092  
Property and equipment 323 363  
Intangible assets and goodwill 864 1,074  
Capitalized research and development expense 9,968 9,630  
Operating lease liabilities 5,627 5,541  
Stock-based compensation 1,220 2,295  
Other 1,533 1,903  
Total deferred tax assets 54,581 55,608  
Valuation allowance (48,978) (49,814) $ (44,951)
Net deferred tax assets 5,603 5,794  
Deferred tax liabilities      
Capitalized internal-use software (503) (674)  
Right-of-use assets (5,010) (4,968)  
Other (90) (152)  
Total deferred tax liabilities (5,603) (5,794)  
Net deferred tax liabilities $ 0 $ 0