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Note 7 - Net Loss Per Share (Details Textual)
3 Months Ended
Sep. 30, 2024
$ / shares
shares
Share-Based Payment Arrangement, Option, Exercise Price Range, Lower Range Limit (in dollars per share) $ 7.47
Share-Based Payment Arrangement, Option, Exercise Price Range, Upper Range Limit (in dollars per share) $ 175.5
Restricted Stock [Member]  
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | shares 0
Share-Based Payment Arrangement, Option [Member]  
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | shares 216,911
Share-Based Payment Arrangement, Option, Exercise Price Range, Lower Range Limit (in dollars per share) $ 7.47
Share-Based Payment Arrangement, Option, Exercise Price Range, Upper Range Limit (in dollars per share) $ 175.5