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Condensed 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, 2022 | $ 20 | $ 131,001 | $ (9,621) | $ 121,400
Balances at the beginning (in shares) at Dec. 31, 2022 | 20,252,677 |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |
Stock-based compensation |  | 3,831 |  | 3,831
Exercise of common stock options and vesting of performance and restricted stock units |  | 11 |  | 11
Exercise of common stock options and vesting of performance and restricted stock units (in shares) | 209,809 |  |  |
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 |  | 882 |  | 882
Common shares issued for employee stock purchase plan (in shares) | 120,816 |  |  |
Net loss for the period |  |  | (1,986) | (1,986)
Balances at the end at Jun. 30, 2023 | $ 23 | 170,347 | (11,607) | 158,763
Balances at the end (in shares) at Jun. 30, 2023 | 23,458,302 |  |  |
Balances at the beginning at Mar. 31, 2023 | $ 23 | 167,646 | (11,507) | 156,162
Balances at the beginning (in shares) at Mar. 31, 2023 | 23,235,065 |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |
Stock-based compensation |  | 1,808 |  | 1,808
Exercise of common stock options and vesting of performance and restricted stock units |  | 11 |  | 11
Exercise of common stock options and vesting of performance and restricted stock units (in shares) | 102,421 |  |  |
Common shares issued for employee stock purchase plan |  | 882 |  | 882
Common shares issued for employee stock purchase plan (in shares) | 120,816 |  |  |
Net loss for the period |  |  | (100) | (100)
Balances at the end at Jun. 30, 2023 | $ 23 | 170,347 | (11,607) | 158,763
Balances at the end (in shares) at Jun. 30, 2023 | 23,458,302 |  |  |
Balances at the beginning at Dec. 31, 2023 | $ 24 | 174,724 | 18,894 | 193,642
Balances at the beginning (in shares) at Dec. 31, 2023 | 23,600,584 |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |
Stock-based compensation |  | 3,899 |  | 3,899
Exercise of common stock options and vesting of performance and restricted stock units |  | 2 |  | 2
Exercise of common stock options and vesting of performance and restricted stock units (in shares) | 258,257 |  |  |
Common shares issued for employee stock purchase plan |  | 1,044 |  | 1,044
Common shares issued for employee stock purchase plan (in shares) | 107,907 |  |  |
Net loss for the period |  |  | 2,089 | 2,089
Balances at the end at Jun. 30, 2024 | $ 24 | 179,669 | 20,983 | 200,676
Balances at the end (in shares) at Jun. 30, 2024 | 23,966,748 |  |  |
Balances at the beginning at Mar. 31, 2024 | $ 24 | 176,764 | 16,685 | 193,473
Balances at the beginning (in shares) at Mar. 31, 2024 | 23,761,897 |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |
Stock-based compensation |  | 1,860 |  | 1,860
Exercise of common stock options and vesting of performance and restricted stock units |  | 1 |  | 1
Exercise of common stock options and vesting of performance and restricted stock units (in shares) | 96,944 |  |  |
Common shares issued for employee stock purchase plan |  | 1,044 |  | 1,044
Common shares issued for employee stock purchase plan (in shares) | 107,907 |  |  |
Net loss for the period |  |  | 4,298 | 4,298
Balances at the end at Jun. 30, 2024 | $ 24 | $ 179,669 | $ 20,983 | $ 200,676
Balances at the end (in shares) at Jun. 30, 2024 | 23,966,748 |  |  |

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