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Note 5 - Stockholders' Equity (Tables)
9 Months Ended
Sep. 30, 2024
Table Text Block [Abstract]  
Schedule of Stockholders' Equity Note, Warrants or Rights

The following table summarizes warrant activity during the nine months ended September 30, 2024:

 

 

Number of
Warrants

 

 

Weighted
Average
Exercise Price

 

 

Weighted
Average
Remaining
Contractual
Life (Years)

 

 

Warrants outstanding, December 31, 2023

 

 

272,211

 

 

$

144.78

 

 

 

4.12

 

 

Granted

 

 

1,731,767

 

 

 

5.13

 

 

 

6.50

 

(1)

Exercised

 

 

(446,304

)

 

 

5.61

 

 

 

 

 

Forfeited, expired or cancelled

 

 

(204

)

 

 

17,438.12

 

 

 

 

 

Warrants outstanding, September 30, 2024

 

 

1,557,470

 

 

 

21.58

 

 

 

5.98

 

(1)

(1) The pre-funded common stock warrants granted and outstanding during and as of the nine months ended September 30, 2024 have a perpetual term and are therefore excluded from the calculation of the weighted average remaining contractual life.