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Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands | Total | Common Stock | Additional Paid-In Capital | Accumulated Deficit
--- | --- | --- | --- | ---
Beginning balance (in shares) at Dec. 31, 2022 |  | 10,518,539 |  |
Beginning balance at Dec. 31, 2022 | $ 18,111 | $ 11 | $ 153,872 | $ (135,772)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Issuance of common stock for cash, net of issuance cost (in shares) |  | 43,161 |  |
Issuance of common stock for cash, net of issuance cost | 44 |  | 44 |
Stock-based compensation | 446 |  | 446 |
Net loss | (7,636) |  |  | (7,636)
Ending balance (in shares) at Mar. 31, 2023 |  | 10,561,700 |  |
Ending balance at Mar. 31, 2023 | 10,965 | $ 11 | 154,362 | (143,408)
Beginning balance (in shares) at Dec. 31, 2022 |  | 10,518,539 |  |
Beginning balance at Dec. 31, 2022 | $ 18,111 | $ 11 | 153,872 | (135,772)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Exercise of stock options (in shares) | 413 |  |  |
Net loss | $ (15,217) |  |  |
Ending balance (in shares) at Jun. 30, 2023 |  | 12,583,833 |  |
Ending balance at Jun. 30, 2023 | 5,012 | $ 13 | 155,988 | (150,989)
Beginning balance (in shares) at Mar. 31, 2023 |  | 10,561,700 |  |
Beginning balance at Mar. 31, 2023 | 10,965 | $ 11 | 154,362 | (143,408)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Issuance of common stock for cash, net of issuance cost (in shares) |  | 537,546 |  |
Issuance of common stock for cash, net of issuance cost | 1,186 | $ 1 | 1,185 |
Exercise of pre-funded warrants, shares |  | 1,484,174 |  |
Exercise of pre-funded warrants | 1 | $ 1 |  |
Stock-based compensation | 440 |  | 440 |
Exercise of stock options (in shares) |  | 413 |  |
Exercise of stock options | 1 |  | 1 |
Net loss | (7,581) |  |  | (7,581)
Ending balance (in shares) at Jun. 30, 2023 |  | 12,583,833 |  |
Ending balance at Jun. 30, 2023 | 5,012 | $ 13 | 155,988 | (150,989)
Beginning balance (in shares) at Dec. 31, 2023 |  | 22,045,255 |  |
Beginning balance at Dec. 31, 2023 | 26,768 | $ 22 | 192,009 | (165,263)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Issuance of common stock in connection with at the market offering (net of issuance costs), shares |  | 56,288 |  |
Issuance of common stock in connection with at the market offering (net of issuance costs) | 253 |  | 253 |
Issuance of common stock under equity plan awards (in shares) |  | 115,722 |  |
Issuance of common stock under equity plan award | 197 |  | 197 |
Stock-based compensation | 1,318 |  | 1,318 |
Net loss | (7,904) |  |  | (7,904)
Ending balance (in shares) at Mar. 31, 2024 |  | 22,217,265 |  |
Ending balance at Mar. 31, 2024 | 20,632 | $ 22 | 193,777 | (173,167)
Beginning balance (in shares) at Dec. 31, 2023 |  | 22,045,255 |  |
Beginning balance at Dec. 31, 2023 | $ 26,768 | $ 22 | 192,009 | (165,263)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Exercise of stock options (in shares) | 81,699 |  |  |
Net loss | $ (17,474) |  |  |
Ending balance (in shares) at Jun. 30, 2024 |  | 24,475,799 |  |
Ending balance at Jun. 30, 2024 | 16,939 | $ 24 | 199,652 | (182,737)
Beginning balance (in shares) at Mar. 31, 2024 |  | 22,217,265 |  |
Beginning balance at Mar. 31, 2024 | 20,632 | $ 22 | 193,777 | (173,167)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Issuance of common stock in connection with at the market offering (net of issuance costs), shares |  | 2,133,534 |  |
Issuance of common stock in connection with at the market offering (net of issuance costs) | 4,557 | $ 2 | 4,555 |
Issuance of common stock under equity plan awards (in shares) |  | 125,000 |  |
Stock-based compensation | 1,320 |  | 1,320 |
Net loss | (9,570) |  |  | (9,570)
Ending balance (in shares) at Jun. 30, 2024 |  | 24,475,799 |  |
Ending balance at Jun. 30, 2024 | $ 16,939 | $ 24 | $ 199,652 | $ (182,737)

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