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Share-Based Payment (Schedule of Black-Scholes Options Pricing Model) (Details)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Disclosure of terms and conditions of share-based payment arrangement [line items]      
Dividend yield 0.00% 0.00% 0.00%
Expected volatility 0.433% 0.427% 0.428%
Risk-free interest 0.48% 0.11% 1.73%
Bottom of range [Member]      
Disclosure of terms and conditions of share-based payment arrangement [line items]      
Expected life (in years) 2 2 2
Top of range [member]      
Disclosure of terms and conditions of share-based payment arrangement [line items]      
Expected life (in years) 3 3 3