XML 55 R45.htm IDEA: XBRL DOCUMENT v3.22.1
SHARE-BASED COMPENSATION - Narrative (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Options outstanding, weighted average grant-date fair value (in usd per share) $ 1.56 $ 4.70
Options exercised, weighted average share price (in usd per share) $ 0 $ 4.85
Fair value of shares vested $ 295 $ 317
Share-based compensation expense 1,214 $ 832
Unrecognized share based compensation expense $ 7,204  
Options    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Prescribed service period 4 years  
Unrecognized share based compensation expense, period for recognition 2 years 5 months 4 days 2 years 5 months 4 days
Restricted share units    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Vesting period 4 years