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STOCK BASED COMPENSATION - Restricted stock units (Details) - USD ($)
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
STOCK BASED COMPENSATION      
Vesting period 4 years    
Cofounders      
STOCK BASED COMPENSATION      
Stock-based compensation expense $ 26,893 $ 12,776  
Cofounders | General and administrative expenses      
STOCK BASED COMPENSATION      
Stock-based compensation expense 26,893 12,776  
Restricted Stock Units | General and administrative expenses      
STOCK BASED COMPENSATION      
Stock-based compensation expense $ 1,415,589 $ 767,908 $ 0
Restricted Stock Units | Cofounders      
STOCK BASED COMPENSATION      
Shares issued pursuant to restricted stock purchase agreements 0 3,411,057 3,411,057
Vesting period   4 years  
Grant-date fair values $ 1.66