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Preferred Stock (Tables)
12 Months Ended
Dec. 31, 2021
Preferred Stock  
Schedule of categories of preferred stock

    

Authorized

Undesignated Preferred Stock

 

984,000

Series B Convertible Preferred Stock

 

1,000,000

Series C Convertible Preferred Stock

 

4,000

Series D Convertible Preferred Stock

 

12,000