v3.26.1
Stock-Based Compensation (Tables)
 6 Months Ended
Jun. 30, 2026
Stock-Based Compensation [Abstract]  
Schedule of Fair Value of the Company’s Share-Based Payment Awards The following assumptions were used in the fair-value method calculations:
    Option Grants  
    Six Months Ended
June 30,		  
    2026     2025  
Interest rate (risk-free rate)     3.70% - 3.75 %     4.34 %
Expected volatility     120% - 121 %     119 %
Expected term      5 years        4.38 years  
Expected dividend     0 %     0 %
Schedule of Shares Available for Grant Under the Plans and Options Outstanding

The following table summarizes the activity in the shares available for grant under the Plans during the six months ended June 30, 2026 and options outstanding as of June 30, 2026 (in thousands, except exercise price):

 

          Options Outstanding  
                Weighted  
    Shares           Average  
    Available     Number of     Exercise  
    for Grant     Shares     Prices  
Balance as of December 31, 2025     1,189       1,347     $ 3.34  
RSUs granted     (200 )     —       —  
Options granted     (893 )     893     $ 0.88  
Options exercised     —       (18 )   $ 0.78  
Balance as of March 31, 2026     96       2,222     $ 2.33  
Options exercised     —       (9 )   $ 0.78  
Options cancelled and returned to the 2019 Plan     47       (47 )   $ 0.83  
Balance as of June 30, 2026     143       2,166     $ 2.37  
Schedule of Significant Ranges of Outstanding and Exercisable Options

The following table summarizes significant ranges of outstanding and exercisable options as of June 30, 2026 (in thousands, except contractual life and exercise price):

 

    Options Outstanding     Options Exercisable  
          Weighted                          
          Average                          
          Remaining     Weighted           Weighted        
          Contractual     Average           Average     Aggregate  
    Number     Life     Exercise     Number     Exercise     Intrinsic  
Range of Exercise Price   Outstanding     (in Years)     Price     Exercisable     Price     value  
$0.00 - $1.00     2,136       8.99     $ 0.82       608     $ 0.79     $ 70  
$1.01 - $62.90     2       3.39     $ 62.80       2     $ 62.80     $ —  
$62.81 - $599.60     28       4.52     $ 108.50       28     $ 108.50     $ —  
$0.00 - $599.60     2,166       8.93     $ 2.37       638     $ 6.02     $ 70  
Schedule of RSU Activity Under Plans

A summary of RSU activity under the 2019 Plan is presented below (in thousands, except for fair value):

 

          Weighted  
          Average  
    Number of     Grant-Date  
    Shares     Fair Value  
Non-vested shares as of December 31, 2025     —       —  
Granted     200     $ 0.94  
Non-vested shares as of March 31, 2026     200     $ 0.94  
Vested     —       —  
Non-vested shares as of June 30, 2026     200     $ 0.94