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The following table summarizes the activities for our unvested performance-vesting stock option awards for the year ended December 31, 2024. (Details) - Performance Vesting Stock Options [Member]
 12 Months Ended
Dec. 31, 2024
$ / shares
shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]  
Unvested at beginning, shares | shares 200,000
Unvested at beginning, price | $ / shares $ 1.48
Granted, shares | shares 0
Granted, price | $ / shares $ 0
Vested, shares | shares (22,000)
Vested, price | $ / shares $ 1.48
Forfeited/canceled, shares | shares (44,666)
Forfeited/canceled, price | $ / shares $ 1.48
Unvested at ending, shares | shares 133,334
Unvested at ending, price | $ / shares $ 1.48