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Stock Based Compensation (Tables)
3 Months Ended
Mar. 31, 2020
Share-based Payment Arrangement [Abstract]  
Schedule of Fair Value of Option Grant of Weighted-average Assumptions

The fair value of each option grant is estimated on the date of grant using the Black-Scholes option pricing model with the following weighted-average assumptions used for grants during the three months ended March 31, 2020:

 

    2020  
       
Dividend yield     5.33 %
Expected volatility     24.59 %
Risk-free interest rate     0.88 %
Expected lives     10  
Estimated forfeitures     -0-