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Note 7 - Common Stock Warrants (Tables)
3 Months Ended
Mar. 31, 2026
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