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SHARE-BASED COMPENSATION (Tables) | 12 Months Ended
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Dec. 31, 2024
Share-Based Payment Arrangement [Abstract] |
Summary of General Terms of Stock-Based Compensation Plans for Awards Granted | Summarized below are the general terms of our stock-based compensation plans, for which awards have been granted as of December 31, 2024.
Stock-Based compensation plan |  | Granted awards |  |  |  | Vesting schedule |  | Options’ exercise price |  | RSUs’ grant date fair value
2007 Plan |  |  | 675,057 |  | (1) |  | immediately upon granting to four years |  | $2.90~$90.85 |  | $12.35~$76.75
(1) The granted awards, net of forfeited or canceled options or shares, were within reserved shares of 400 thousand ordinary shares.
Summary of Option Transactions | Option transactions during the last three years are summarized as follows:
| 2024 |  |  | 2023 |  | 2022 |
| Weighted Avg. Exercise Price |  |  | No. of Shares (in thousands) |  |  | Weighted- Average Remaining Contractual Term |  |  | Aggregate Intrinsic Value (in thousands) |  |  | Weighted Avg. Exercise Price |  |  | No. of Shares (in thousands) |  |  |  | Weighted Avg. Exercise Price |  |  | No. of Shares (in thousands) |
Balance at January 1 | $ | 6.56 |  |  |  | 29 |  |  |  |  |  |  |  |  | $ | 6.38 |  |  |  | 33 |  |  |  | $ | 6.13 |  |  |  | 37 |
Options granted |  | — |  |  |  | — |  |  |  |  |  |  |  |  |  | — |  |  |  | — |  |  |  |  | — |  |  |  | — |
Options exercised |  | — |  |  |  | — |  |  |  |  |  |  |  |  |  | — |  |  |  | — |  |  |  |  | — |  |  |  | — |
Options Forfeited / canceled / expired |  | 7.15 |  |  |  | (25 | ) |  |  |  |  |  |  |  |  | 5.05 |  |  |  | (4 | ) |  |  |  | 4.05 |  |  |  | (4 | )
Balance at December 31 | $ | 2.90 |  |  |  | 4 |  |  |  | 2.34 |  |  | $ | — |  |  | $ | 6.56 |  |  |  | 29 |  |  |  | $ | 6.38 |  |  |  | 33 |
Exercisable at December 31 | $ | 2.90 |  |  |  | 4 |  |  |  | 2.34 |  |  | $ | — |  |  | $ | 6.56 |  |  |  | 29 |  |  |  | $ | 6.38 |  |  |  | 33 |
Vested and expected to vest at December 31 | $ | 2.90 |  |  |  | 4 |  |  |  | 2.34 |  |  | $ | — |  |  | $ | 6.56 |  |  |  | 29 |  |  |  | $ | 6.38 |  |  |  | 33 |
Information about Stock Options Outstanding | The following table sets forth information about stock options outstanding at December 31, 2024:
Options outstanding |  |  | Option currently exercisable |
Exercise price |  | No. of Shares (in thousands) |  |  | Weighted average remaining contractual life |  |  | Exercise price |  | No. of Shares (in thousands) |
Under $5 |  |  | 4 |  |  | 2.34 years |  |  | Under $5 |  |  | 4 |
$5~$50 |  |  | — |  |  |  | — |  |  | $5~$50 |  |  | — |
$50~$100 |  |  | — |  |  |  | — |  |  | $50~$100 |  |  | — |
|  |  | 4 |  |  |  |  |  |  |  |  | 4 |

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