SHARE-BASED COMPENSATION - Statements of operations and comprehensive loss (Details) - USD ($)  | 
3 Months Ended | 9 Months Ended | |
|---|---|---|---|
Sep. 30, 2022  | 
Sep. 30, 2023  | 
Sep. 30, 2022  | 
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| SHARE-BASED COMPENSATION | |||
| Total share-based compensation | $ 108,584 | $ 266,701 | $ 397,480 | 
| Unrecognized share-based compensation related to options outstanding | $ 487,925 | ||
| Unrecognized share-based compensation related to options outstanding expected to be recognized over weighted-average remaining service period | 2 years 6 months | ||
| Research and development | |||
| SHARE-BASED COMPENSATION | |||
| Total share-based compensation | 39,627 | $ 78,018 | 157,147 | 
| General and administrative | |||
| SHARE-BASED COMPENSATION | |||
| Total share-based compensation | $ 68,957 | $ 188,683 | $ 240,333 | 
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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available. 
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- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- Definition Amount of cost to be recognized for option under share-based payment arrangement. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef 
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