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Earnings Per Share (Tables)
9 Months Ended
Sep. 30, 2021
Earnings Per Share [Abstract]  
Schedule of computation of basic and diluted earnings per common share
   Three Months Ended
September 30,
   Nine Months Ended
September 30,
 
   2021   2020   2021   2020 
Earnings per common share – Basic                
                 
Net income  $3,270,861   $4,656,830   $7,776,445   $8,736,032 
                     
Weighted average number of common shares outstanding   9,485,799    9,462,105    9,483,499    9,454,639 
                     
Earnings per common share – Basic  $0.34   $0.49   $0.82   $0.92 
                     
Earnings per common share – Diluted                    
                     
Net income  $3,270,861   $4,656,830   $7,776,445   $8,736,032 
                     
Weighted average number of common shares outstanding   9,485,799    9,462,105    9,483,499    9,454,639 
                     
Dilutive effect of outstanding stock options   
-
    
-
    
-
    4,708 
                     
Weighted average number of common shares outstanding - Diluted   9,485,799    9,462,105    9,483,499    9,459,347 
                     
Earnings per common share – Diluted  $0.34   $0.49   $0.82   $0.92