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Earnings (Loss) Per Share (Tables)
3 Months Ended
Mar. 31, 2021
Earnings Per Share [Abstract]  
Schedule of Basic and Diluted Loss Per Share
   

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