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Stockholders' Equity (Tables)
12 Months Ended
Dec. 31, 2021
Stockholders' deficit:  
Convertible preferred stock

 

 

 

 

 

Shares Issued and

 

 

 

Authorized

 

 

Outstanding December 31,

 

 

 

Shares

 

 

2021

 

 

2020

 

Series B preferred stock

 

 

7,235

 

 

 

1,278

 

 

 

1,323

 

Undesignated

 

 

57,765

 

 

 

 

 

 

 

 

 

 

65,000

 

 

 

1,278

 

 

 

1,323