v3.26.3
Stock-Based Compensation - Schedule of Stock Option Activity Under the Plan and the Predecessor Plan (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2026
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Dec. 31, 2024
Share-Based Payment Arrangement [Abstract]          
Beginning balance, Number   4,234,000 3,818,000 3,818,000  
Granted   1,980,000   1,513,000  
Exercised (33,000) (33,000)   0 0
Forfeited and expired   (236,000)   (1,097,000)  
Ending balance, Number 5,945,000 5,945,000   4,234,000 3,818,000
Vested and expected to vest 5,945,000 5,945,000   4,234,000  
Exercisable 5,945,000 5,945,000   2,315,000  
Beginning balance, Weighted-Average Exercise Price   $ 5.22 $ 6.37 $ 6.37  
Weighted-Average Exercise Price, Granted   1.27   2.28  
Weighted-Average Exercise Price, Exercised   1.08      
Weighted-Average Exercise Price, Forfeited and expired   5.04   4.74  
Ending balance, Weighted-Average Exercise Price $ 2.81 2.81   5.22 $ 6.37
Weighted-Average Exercise Price, Vested and expected to vest 2.81 2.81   5.22  
Weighted-Average Exercise Price, Exercisable $ 2.81 $ 2.81   $ 5.38  
Weighted-Average Remaining Term (years)   3 years 9 months 18 days 7 years 4 months 24 days 7 years 4 months 24 days 7 years 2 months 12 days
Weighted-Average Remaining Term (years), Vested and expected to vest   3 years 9 months 18 days   7 years 4 months 24 days  
Weighted-Average Remaining Term (years), Exercisable   3 years 9 months 18 days   6 years 7 months 6 days  
Aggregate-Intrinsic Value $ 2,740 $ 2,740   $ 28  
Aggregate-Intrinsic Value, Vested and expected to vest 2,740 2,740   28  
Aggregate-Intrinsic Value, Exercisable $ 2,740 $ 2,740   $ 9