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ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Details) - USD ($) | 3 Months Ended | 6 Months Ended | 12 Months Ended | 36 Months Ended |
--- | --- | --- | --- | --- | ---
Jun. 30, 2024 | Mar. 31, 2024 | Jun. 30, 2023 | Mar. 31, 2023 | Jun. 30, 2024 | Jun. 30, 2023 | Dec. 31, 2023 | Dec. 31, 2021 | Jun. 30, 2024 | Dec. 31, 2020
Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |
Cash, cash equivalents, and marketable securities | $ 29,500,000 |  |  |  | $ 29,500,000 |  | $ 39,500,000 |  | $ 29,500,000 |
Milestone payment received |  |  |  |  | (8,878,314) | $ 5,095,837 |  |  |  |
Gross proceeds from sale of common stock |  |  |  |  | 4,276,093 | 2,130,395 |  |  |  |
Revenue recognized under "ERC" |  |  |  |  |  |  | $ 191,463 | $ 191,199 |  |
Receivables under "ERC" | 366,551 |  |  |  | 366,551 |  |  | $ 738,778 | $ 366,551 | $ 738,778
Grant income | 0 |  | $ 0 |  | 0 | 0 |  |  |  |
Research and development | 12,504,769 |  | 8,817,389 |  | 23,605,782 | 16,478,908 |  |  |  |
Comprehensive loss | (11,152,496) |  | (7,281,872) |  | (20,874,681) | (15,060,396) |  |  |  |
Net unrealized gain (loss) on marketable securities | $ (152,714) | $ 71,888 | $ 84,707 | $ (10,258) | $ (80,826) | $ 74,449 |  |  |  |
Antidilutive securities | 15,631,881 |  | 7,784,934 |  | 15,631,881 | 7,784,934 |  |  |  |
June 2021 ATM Program |  |  |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |
Number of common stock shares issued |  |  |  |  |  |  |  |  | 3,753,833 |
Average price | $ 5.63 |  |  |  | $ 5.63 |  |  |  | $ 5.63 |
Gross proceeds from sale of common stock |  |  |  |  |  |  |  |  | $ 21,100,000 |
Wainwright | June 2021 ATM Program |  |  |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |
Number of common stock shares issued |  |  |  |  | 777,679 |  |  |  |  |
Average price | $ 5.81 |  |  |  | $ 5.81 |  |  |  | $ 5.81 |
Gross proceeds from sale of common stock |  |  |  |  | $ 4,300,000 |  |  |  |  |
Commercialization and Distribution Agreement with Nippon Shinyaku Co, Limited, Japan |  |  |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |
Milestone payment received |  | $ 10,000,000.0 |  |  |  |  |  |  |  |

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