Quarterly report pursuant to Section 13 or 15(d)

Note 8 - Stockholders' Equity- Stock Warrants (Details)

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Note 8 - Stockholders' Equity- Stock Warrants (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Dec. 31, 2022
Warrants, outstanding (in shares) 6,078,132 7,170,431 4,137,916  
Outstanding, weighted average exercise price (in dollars per share) $ 1.55 $ 1.32 $ 3.3  
Outstanding, December 31, 2022 $ 1 $ 1 $ 1,272 $ 1
Warrants, Granted (in shares)     3,432,598  
Granted, weighted average exercise price (in dollars per share)     $ 0.88  
Warrants, Exercised (in shares)   (1,092,299) (400,083)  
Exercised, weighted average exercise price (in dollars per share)   $ 0 $ 0  
Warrants, outstanding (in shares) 6,078,132 6,078,132 7,170,431 4,137,916
Outstanding, weighted average exercise price (in dollars per share) $ 1.55 $ 1.55 $ 1.32 $ 3.3