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Unaudited Condensed Statements of Stockholders' Equity - USD ($) $ in Thousands | Total | Common Stock | Additional Paid-In Capital | Accumulated Deficit
--- | --- | --- | --- | ---
Beginning balance (in shares) at Dec. 31, 2022 |  | 16,549,984 |  |
Beginning balance at Dec. 31, 2022 | $ 42,460 | $ 17 | $ 297,970 | $ (255,527)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Issuance of stock from vested restricted stock units (in shares) |  | 113,378 |  |
Issuance of stock under Employee Stock Purchase Plan (in shares) |  | 70,317 |  |
Issuance of stock under Employee Stock Purchase Plan | 152 |  | 152 |
Exercise of stock options (in shares) |  | 93,335 |  |
Exercise of stock options | 27 |  | 27 |
Stock-based compensation | 986 |  | 986 |
Net loss | (7,688) |  |  | (7,688)
Ending balance (in shares) at Mar. 31, 2023 |  | 16,827,014 |  |
Ending balance at Mar. 31, 2023 | 35,937 | $ 17 | 299,135 | (263,215)
Beginning balance (in shares) at Dec. 31, 2022 |  | 16,549,984 |  |
Beginning balance at Dec. 31, 2022 | 42,460 | $ 17 | 297,970 | (255,527)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Net loss | (18,116) |  |  |
Ending balance (in shares) at Sep. 30, 2023 |  | 16,931,894 |  |
Ending balance at Sep. 30, 2023 | 27,504 | $ 17 | 301,130 | (273,643)
Beginning balance (in shares) at Mar. 31, 2023 |  | 16,827,014 |  |
Beginning balance at Mar. 31, 2023 | 35,937 | $ 17 | 299,135 | (263,215)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Issuance of stock from vested restricted stock units (in shares) |  | 31,180 |  |
Stock-based compensation | 978 |  | 978 |
Net loss | (5,013) |  |  | (5,013)
Ending balance (in shares) at Jun. 30, 2023 |  | 16,858,194 |  |
Ending balance at Jun. 30, 2023 | 31,902 | $ 17 | 300,113 | (268,228)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Issuance of stock from vested restricted stock units (in shares) |  | 14,424 |  |
Issuance of stock under Employee Stock Purchase Plan (in shares) |  | 59,276 |  |
Issuance of stock under Employee Stock Purchase Plan | 127 |  | 127 |
Stock-based compensation | 890 |  | 890 |
Net loss | (5,415) |  |  | (5,415)
Ending balance (in shares) at Sep. 30, 2023 |  | 16,931,894 |  |
Ending balance at Sep. 30, 2023 | $ 27,504 | $ 17 | 301,130 | (273,643)
Beginning balance (in shares) at Dec. 31, 2023 | 17,045,954 | 17,045,954 |  |
Beginning balance at Dec. 31, 2023 | $ 22,694 | $ 17 | 301,893 | (279,216)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Issuance of stock from vested restricted stock units (in shares) |  | 217,056 |  |
Issuance of stock under Employee Stock Purchase Plan (in shares) |  | 54,605 |  |
Issuance of stock under Employee Stock Purchase Plan | 104 |  | 104 |
Exercise of stock options (in shares) |  | 326 |  |
Stock-based compensation | 553 |  | 553 |
Net loss | (3,360) |  |  | (3,360)
Ending balance (in shares) at Mar. 31, 2024 |  | 17,317,941 |  |
Ending balance at Mar. 31, 2024 | $ 19,991 | $ 17 | 302,550 | (282,576)
Beginning balance (in shares) at Dec. 31, 2023 | 17,045,954 | 17,045,954 |  |
Beginning balance at Dec. 31, 2023 | $ 22,694 | $ 17 | 301,893 | (279,216)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Net loss | $ (11,354) |  |  |
Ending balance (in shares) at Sep. 30, 2024 | 17,520,335 | 17,520,335 |  |
Ending balance at Sep. 30, 2024 | $ 12,868 | $ 18 | 303,420 | (290,570)
Beginning balance (in shares) at Mar. 31, 2024 |  | 17,317,941 |  |
Beginning balance at Mar. 31, 2024 | 19,991 | $ 17 | 302,550 | (282,576)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Issuance of stock from vested restricted stock units (in shares) |  | 62,998 |  |
Exercise of stock options (in shares) |  | 636 |  |
Stock-based compensation | 560 |  | 560 |
Net loss | (2,966) |  |  | (2,966)
Ending balance (in shares) at Jun. 30, 2024 |  | 17,381,575 |  |
Ending balance at Jun. 30, 2024 | 17,585 | $ 17 | 303,110 | (285,542)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Issuance of stock from vested restricted stock units (in shares) |  | 13,155 |  |
Issuance of stock under Employee Stock Purchase Plan (in shares) |  | 41,443 |  |
Issuance of stock under Employee Stock Purchase Plan | 72 | $ 1 | 71 |
Exercise of stock options (in shares) |  | 84,162 |  |
Exercise of stock options | 22 |  | 22 |
Stock-based compensation | 217 |  | 217 |
Net loss | $ (5,028) |  |  | (5,028)
Ending balance (in shares) at Sep. 30, 2024 | 17,520,335 | 17,520,335 |  |
Ending balance at Sep. 30, 2024 | $ 12,868 | $ 18 | $ 303,420 | $ (290,570)

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