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v3.23.3

Organization and Operations - Liquidity (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 1 Months Ended | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | --- | ---
Jun. 30, 2021 | Nov. 30, 2022 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022
Liquidity |  |  |  |  |  |
Accumulated deficit |  |  |  | $ 549,124 |  | $ 507,643
Cash, cash equivalents and short-term investments |  |  |  | $ 188,800 |  |
Exercise price (in dollars per share) |  |  |  | $ 37.50 |  |
Common stock |  |  |  |  |  |
Liquidity |  |  |  |  |  |
Issuance of common stock for at-the-market offerings, net of issuance costs (in shares) |  |  | 2,715,166 |  |  |
Pre-funded warrants |  |  |  |  |  |
Liquidity |  |  |  |  |  |
Exercise price (in dollars per share) |  |  |  | 0.001 |  |
Common stock warrants |  |  |  |  |  |
Liquidity |  |  |  |  |  |
Exercise price (in dollars per share) |  |  |  | $ 8.025 |  |
ATM Program | Common stock |  |  |  |  |  |
Liquidity |  |  |  |  |  |
Net proceeds from issuance of common stock |  |  | $ 24,300 |  | $ 24,300 |
Gross proceeds from issuance of stock |  |  | 25,000 |  | 25,000 |
Underwritten public offering |  |  |  |  |  |
Liquidity |  |  |  |  |  |
Number of shares issued |  |  |  | 8,253,895 |  |
Gross proceeds from issuance of stock |  |  |  | $ 64,000 |  |
Underwritten public offering | Common stock warrants |  |  |  |  |  |
Liquidity |  |  |  |  |  |
Number of warrants to purchase common stock |  |  |  | 6,190,418 |  |
Underwritten public offering | Pre-funded warrants |  |  |  |  |  |
Liquidity |  |  |  |  |  |
Number of warrants to purchase common stock |  |  |  | 1,571,093 |  |
Underwritten public offering | Common stock warrants |  |  |  |  |  |
Liquidity |  |  |  |  |  |
Number of warrants to purchase common stock |  |  |  | 1,178,320 |  |
Jefferies | ATM Program |  |  |  |  |  |
Liquidity |  |  |  |  |  |
Maximum aggregate value of common shares which can be issued under the agreement | $ 25,000 |  | 50,000 |  | 50,000 |
Percentage of commission paid to underwriter based on proceeds from common stock | 3.00% |  |  |  |  |
Amount of common stock available for future issuance |  | $ 50,000 | $ 30,500 |  | $ 30,500 |
Aggregate offering price |  | $ 88,100 |  |  |  |
Amount of common stock remains available for sale under ATM program |  |  |  | $ 50,000 |  |
Issuance of common stock for at-the-market offerings, net of issuance costs (in shares) |  |  | 2,715,166 |  | 2,715,166 |

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