XML 49 R39.htm IDEA: XBRL DOCUMENT v3.22.1
SHARE-BASED COMPENSATION - Summary of Stock Option Activity Under Restricted Stock Units (Details)
3 Months Ended
Mar. 31, 2022
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Granted 1,552,395
Restricted Stock Units (RSUs) [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares, Beginning Balance 2,330,094
Granted 3,452,961
Vested 116,613
Forfeited 215,518
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares, Ending Balance 5,450,924
Share-based Compensation Arrangement by Share-based Payment Award, Option, Nonvested, Weighted Average Exercise Price, Beginning Balance | $ / shares $ 3.58
Granted | $ / shares 1.61
Vested | $ / shares 3.58
Forfeited | $ / shares 3.33
Share-based Compensation Arrangement by Share-based Payment Award, Option, Nonvested, Weighted Average Exercise Price, Ending Balance | $ / shares $ 2.35