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Stockholders' Equity
3 Months Ended
Mar. 31, 2023
Equity [Abstract]  
Stockholders' Equity
(5)
Stockholders’ Equity
The changes in stockholders’ equity are as follows:
 
 
  
Three months ended March 31,
 
 
  
2022
 
  
2023
 
Beginning balance
   $ 263,082,298      $ 223,488,808  
Stock-based compensation
     227,250        174,268  
Purchase of treasury stock
     (29,599      (25,545
Net loss
     (3,738,945      (3,536,566
    
 
 
    
 
 
 
Ending balance
   $ 259,541,004      $ 220,100,965