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Earnings (Loss) Per Share
 3 Months Ended
Mar. 31, 2021
Earnings Per Share [Abstract]  
Earnings (Loss) Per Share
(4) Earnings (Loss) Per Share. Basic earnings (loss) per share has been computed on the basis of the weighted-average number of shares of common stock outstanding during the period. During the three month period ended March 31, 2021, basic and diluted earnings per share is the same as there were no outstanding potentially dilutive securities. During the three month period ended March 31, 2020, basic and diluted loss per share is the same due to the net loss incurred by the Company. Earnings (loss) per common share have been computed based on the following:

 

   

Three Months Ended

March 31,

  
    2021     2020  
Weighted-average number of common shares outstanding used to calculate basic and diluted earnings (loss) per common share     3,203,576       2,859,844