Registration statement for securities of certain foreign private issuers

EQUITY - Stock options using the Black-Scholes option pricing model and used the assumptions (Details)

v3.22.2.2
EQUITY - Stock options using the Black-Scholes option pricing model and used the assumptions (Details)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
EQUITY      
Risk-free interest rate 0.73% 0.13% 2.50%
Contractual term (years)   2.00  
Expected volatility 66.00% 42.00% 39.00%
Expected dividends 0.00% 0.00% 0.00%
Minimum      
EQUITY      
Contractual term (years) 1 2.00  
Maximum      
EQUITY      
Contractual term (years) 3