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Share-Based Compensation - Valuation assumptions (Details)
12 Months Ended
Dec. 31, 2022
Stock Option 2019 Plan  
Valuation assumptions:  
Expected dividend yield 3.50%
Stock Option 2019 Plan | Minimum  
Valuation assumptions:  
Expected volatility 51.96%
Expected term (years) 1 year
Risk-free interest rate 1.69%
Stock Option 2019 Plan | Maximum  
Valuation assumptions:  
Expected volatility 57.79%
Expected term (years) 1 year 6 months
Risk-free interest rate 1.75%
CMVT | Stock options 2021 plan  
Valuation assumptions:  
Expected dividend yield 0.00%
Expected volatility 43.82%
Expected term (years) 3 years 1 month 15 days
Risk-free interest rate 0.223%
Liqxtal Technology Inc | Stock options 2021 plan  
Valuation assumptions:  
Expected dividend yield 0.00%
Expected volatility 30.06%
Expected term (years) 1 year 3 months
Risk-free interest rate 0.107%
Emza | Stock options 2022 plan  
Valuation assumptions:  
Expected dividend yield 0.00%
Expected volatility 54.05%
Expected term (years) 6 years 1 month 9 days
Risk-free interest rate 0.65%