XML 92 R80.htm IDEA: XBRL DOCUMENT v3.22.1
ORDINARY SHARE AND SHARE INCENTIVE PLANS - Stock-Based Compensation - Additional Information (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Unrecognized compensation cost related to unvested stock options and restricted stock and restricted stock units    
Unrecognized compensation cost $ 0.7 $ 0.9
Expected weighted-average period of unrecognized cost 1 year 3 months 21 days 1 year 9 months 18 days