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SHARE BASED COMPENSATION - Summary of share option activities (Details) - USD ($) |  | 12 Months Ended
--- | --- | ---
Apr. 30, 2020 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |
Share-based compensation |  | $ 9,736,901 | $ 10,147,362 | $ 14,213,841
Employee Stock Option |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |
Outstanding at the beginning |  | 26,107,401 | 28,431,196 |
Exercised |  | (1,727,500) | (2,323,795) |
Outstanding at the end |  | 24,379,901 | 26,107,401 | 28,431,196
Outstanding at the beginning |  | $ 0.03001 | $ 0.03046 |
Exercised |  | 0.03112 | 0.03554 |
Outstanding at the end |  | $ 0.02993 | $ 0.03001 | $ 0.03046
Weighted average remaining contractual life |  | 3 years 10 months 6 days | 4 years 9 months 29 days | 5 years 9 months 25 days
Aggregate intrinsic value |  | $ 10,450,903 | $ 7,243,680 | $ 7,335,391
Share-based compensation | $ 800,000 | 111,536 | $ 612,686 | $ 1,238,963
Total unrecognized share based compensation expense |  | $ 5,852,711 |  |
Weighted average period expected to be recognized for unrecognized share based compensation expense |  | 3 years 9 months 18 days |  |

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