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Note 6 - Common Stock Warrants (Tables)
9 Months Ended
Sep. 30, 2025
Notes Tables  
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]

Description of Warrants

Warrant Issuance Date

 

No. of Shares

  

Exercise Price

 

SWK Warrants – Debt – Tranche #1

11/13/2019

  51,239  $5.86 

SWK Warrants – Debt – Tranche #2

8/11/2020

  18,141  $6.62 

SWK Warrants – Debt – Tranche #3

9/30/2024

  289,736  $5.32 

Total shares and weighted average exercise price

  359,116  $5.46