Quarterly report pursuant to Section 13 or 15(d)

SHARE-BASED COMPENSATION - Stock option activity (Details)

v3.21.2
SHARE-BASED COMPENSATION - Stock option activity (Details) - $ / shares
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]    
Granted 2,357,500  
Vested 788,167  
Outstanding at the end of the period 1,569,333 1,569,333
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]    
Weighted Average Exercise price, granted $ 6.21 $ 4.72
Weighted Average Exercise price, Vested 6.22  
Weighted Average Exercise price, Beginning of the period $ 6.20 $ 6.20