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STOCKHOLDERS' EQUITY (Details) - USD ($) |  |  |  |  | 9 Months Ended | 39 Months Ended
--- | --- | --- | --- | --- | --- | ---
Sep. 10, 2025 | Oct. 16, 2024 | Sep. 16, 2024 | Jun. 21, 2021 | Sep. 30, 2025 | Sep. 30, 2024 | Oct. 01, 2024
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |
Gross proceeds from sale of common stock |  |  |  |  |  | $ 71,481,962 |
October 2024 Underwritten Public Offering |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |
Number of common stock shares issued |  | 5,073,800 |  |  |  |  |
Public offering price |  | $ 17 |  |  |  |  |
Gross proceeds from sale of common stock |  | $ 86,300,000 |  |  |  |  |
Issuance costs |  | $ 5,400,000 |  |  |  |  |
June 2021 ATM Program |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |
Number of common stock shares issued |  |  |  |  |  |  | 9,228,383
Gross proceeds from sale of common stock |  |  |  |  |  |  | $ 75,000,000
Issuance costs |  |  |  |  |  |  | $ 2,400,000
Commission rate on sale price per share payable to Wainwright on sale of common stock |  |  |  | 3.00% |  |  |
Average price (in dollars per share) |  |  |  |  |  |  | $ 8.13
September 2025 ATM Program |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |
Number of common stock shares issued |  |  |  |  | 0 |  |
Maximum aggregate offering price | $ 150,000,000 |  |  |  |  |  |
Commission rate on sale price per share payable to Wainwright on sale of common stock | 3.00% |  |  |  |  |  |
July 2019 ATM Program |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |
Maximum aggregate offering price |  |  |  | $ 75,000,000 |  |  |
Nippon Shinyaku | Private placement |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |
Number of common stock shares issued |  |  | 2,798,507 |  |  |  |
Public offering price |  |  | $ 5.36 |  |  |  |
Gross proceeds from sale of common stock |  |  | $ 15,000,000 |  |  |  |
Percentage of premium on weighted average price |  |  | 20.00% |  |  |  |
Weighted average number of days |  |  | 60 days |  |  |  |

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