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Stock-Based Compensation (Tables)
3 Months Ended
Mar. 31, 2021
Share-based Payment Arrangement [Abstract]  
Schedule of Stock Option Activity

A summary of stock option activity during the three months ended March 31, 2021 and 2020 is as follows:

 

                Weighted-      
          Weighted-     Average      
    Shares     Average     Remaining   Aggregate  
    Under     Exercise     Contractual   Intrinsic  
    Option     Price     Life   Value  
Outstanding at January 1, 2021     145,360     $ 5.61     9 years     19,200  
                             
Outstanding at March 31, 2021     145,360     $ 5.61     9 years   $ 19,200  
                             
Exercisable at March 31, 2021     41,560     $ 9.34     8 years   $ 19,200  

  

                Weighted-      
          Weighted-     Average      
    Shares     Average     Remaining   Aggregate  
    Under     Exercise     Contractual   Intrinsic  
    Option     Price     Life   Value  
Outstanding at January 1, 2020     46,860     $ 9.02     9 years     19,200  
                             
Outstanding at March 31, 2020     46,860     $ 9.02     9 years   $ 19,200  
                             
Exercisable at March 31, 2020     38,785     $ 9.54     9 years   $ 19,200