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The following table summarizes the activities for our unvested performance-vesting stock option awards for the nine months ended September 30, 2025. (Details) - Performance Vesting Stock Options [Member]
 9 Months Ended
Sep. 30, 2025
$ / shares
shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]  
Outstanding at beginning | shares 155,334
Outstanding at beginning | $ / shares $ 1.48
Granted | shares
Granted | $ / shares
Exercised | shares (22,000)
Exercised | $ / shares $ 1.48
Vested | shares
Vested | $ / shares
Forfeited/canceled | shares (133,334)
Forfeited/canceled | $ / shares $ 1.48
Outstanding at end | shares
Outstanding at end | $ / shares