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Assumptions Used in Valuation of Issued Stock Options (Details)
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Share-Based Payment Arrangement [Abstract]        
Risk-free interest rate 0.00% 0.00% 2.90% 1.30%
Expected life in years 7 years 1 month 6 days 7 years 2 months 12 days
Expected volatility 0.00% 0.00% 21.70% 20.70%
Dividend yield 0.00% 0.00% 1.20% 1.20%