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Stockholders' Equity
 6 Months Ended
Jun. 30, 2023
Equity [Abstract]  
Stockholders' Equity
(7)
Stockholders’ Equity

The changes in stockholders’ equity are as follows:

 

 

Three months ended June 30,

 

 

Six months ended June 30,

 

 

2022

 

 

2023

 

 

2022

 

 

2023

 

Beginning balance

 

$

259,689,019

 

 

$

220,100,965

 

 

$

263,082,298

 

 

$

223,488,808

 

Stock-based compensation

 

 

378,830

 

 

 

181,339

 

 

 

606,080

 

 

 

355,607

 

Purchase of treasury stock

 

 

(76,108

)

 

 

(42,222

)

 

 

(105,707

)

 

 

(67,767

)

Net loss

 

 

(14,454,717

)

 

 

(10,430,629

)

 

 

(18,045,647

)

 

 

(13,967,195

)

Ending balance

 

$

245,537,024

 

 

$

209,809,453

 

 

$

245,537,024

 

 

$

209,809,453