v3.26.1
Stockholders' Equity - Schedule of Stock Options Activity (Details) - 2015 Equity Incentive Plan - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 6 Months Ended 12 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Number of Shares    
Outstanding at the beginning (in shares) 6,000  
Granted (in shares) 0  
Exercised (in shares) 0  
Forfeited (in shares) (54)  
Expired (in shares) (271)  
Outstanding at the end (in shares) 5,675 6,000
Expected to vest (in shares) 5,675  
Exercisable (in shares) 3,825  
Weighted Average Exercise Price    
Outstanding at the beginning (in dollars per share) $ 2.85  
Granted (in dollars per share) 0  
Exercised (in dollars per share) 0  
Forfeited (in dollars per share) 2.78  
Expired (in dollars per share) 3.21  
Outstanding at the end (in dollars per share) 2.83 $ 2.85
Expected to vest (in dollars per share) 2.83  
Exercisable (in dollars per share) $ 3.14  
Weighted Average Remaining Term    
Weighted Average Remaining Term (in years) 7 years 8 months 26 days 7 years 11 months 23 days
Vested and expected to vest (in years) 7 years 8 months 26 days  
Exercisable (in years) 7 years 8 months 4 days  
Aggregate Intrinsic Value    
Outstanding $ 0 $ 0
Expected to vest 0  
Exercisable $ 0