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Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands | Common Stock | Additional Paid-In Capital | Retained Earnings (Accumulated Deficit) | Total
--- | --- | --- | --- | ---
Balances at the beginning at Dec. 31, 2021 | $ 20 | $ 119,962 | $ 8,245 | $ 128,227
Balances at the beginning (in shares) at Dec. 31, 2021 | 19,877,786 |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |
Stock-based compensation |  | 9,600 |  | 9,600
Exercise of common stock options and vesting of performance and restricted stock units |  | 153 |  | 153
Exercise of common stock options and vesting of performance and restricted stock units (in shares) | 225,282 |  |  |
Common shares issued for employee stock purchase plan |  | 1,286 |  | 1,286
Common shares issued for employee stock purchase plan (in shares) | 149,609 |  |  |
Net income (loss) for the period |  |  | (17,866) | (17,866)
Balances at the end at Dec. 31, 2022 | $ 20 | 131,001 | (9,621) | 121,400
Balances at the end (in shares) at Dec. 31, 2022 | 20,252,677 |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |
Stock-based compensation |  | 7,547 |  | 7,547
Exercise of common stock options and vesting of performance and restricted stock units | $ 1 | 13 |  | 14
Exercise of common stock options and vesting of performance and restricted stock units (in shares) | 283,624 |  |  |
Sale of common stock from follow-on public offering, net of offering expenses | $ 3 | 34,622 |  | 34,625
Sale of common stock from follow-on public offering, net of offering expenses (in shares) | 2,875,000 |  |  |
Common shares issued for employee stock purchase plan |  | 1,541 |  | 1,541
Common shares issued for employee stock purchase plan (in shares) | 189,283 |  |  |
Net income (loss) for the period |  |  | 28,515 | 28,515
Balances at the end at Dec. 31, 2023 | $ 24 | 174,724 | 18,894 | 193,642
Balances at the end (in shares) at Dec. 31, 2023 | 23,600,584 |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |
Stock-based compensation |  | 7,819 |  | 7,819
Exercise of common stock options and vesting of performance and restricted stock units |  | 24 |  | 24
Exercise of common stock options and vesting of performance and restricted stock units (in shares) | 317,443 |  |  |
Share repurchases |  | (3,508) |  | $ (3,508)
Share repurchase (in shares) | (195,518) |  |  | (195,518)
Common shares issued for employee stock purchase plan |  | 1,660 |  | $ 1,660
Common shares issued for employee stock purchase plan (in shares) | 160,966 |  |  |
Net income (loss) for the period |  |  | 16,960 | 16,960
Balances at the end at Dec. 31, 2024 | $ 24 | $ 180,719 | $ 35,854 | $ 216,597
Balances at the end (in shares) at Dec. 31, 2024 | 23,883,475 |  |  |

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