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Earnings/(loss) per share (Tables)
12 Months Ended
Dec. 31, 2021
Earnings Per Share [Abstract]  
Basic and Diluted Earnings Per Share Calculation
The Company calculates basic and diluted earnings per share as follows:
 
    
Year Ended December 31,
 
    
2019
    
2020
    
2021
 
Numerator
                          
Net income/(loss)
     2,093,124        11,984,485        (35,123,208
Less: Undistributed earnings allocated to
non-vested
shares
     (8,922      —          —    
    
 
 
    
 
 
    
 
 
 
Net income/(loss) attributable to common shareholders, basic
     2,084,202        11,984,485        (35,123,208
    
 
 
    
 
 
    
 
 
 
Denominator
                          
Weighted average number of shares outstanding, basic and diluted
     39,800,434        38,357,893        37,858,437  
    
 
 
    
 
 
    
 
 
 
Earnings/(
Loss) per share, basic and diluted
     0.05        0.31        (0.93