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Stock Compensation Plans, Weighted Average Assumptions Used in Valuing Stock Options Granted (Details) - Stock Options [Member]
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Weighted average assumptions used in valuing stock options [Abstract]    
Risk-free interest rate 0.00% 1.42%
Expected dividend yield 0.00% 0.00%
Expected life   5 years
Expected price volatility 0.00% 10.18%