v3.26.1
Note 8 - Stockholders' Equity - Schedule of Warrant Activity (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 9 Months Ended 12 Months Ended
Mar. 31, 2026
Jun. 30, 2025
Dec. 31, 2025
Outstanding (in shares) 77    
Warrants Outstanding, Weighted Average Exercise Price (in dollars per share) $ 69.04    
Outstanding, Aggregate Fair Market Value $ 1,796   $ 3,553
Outstanding, Weighted Average Remaining Contractual Term (Year) 3 days 7 months 17 days  
Warrants issued (in shares) 0    
Warrants issued, Weighted Average Exercise Price (in dollars per share) $ 0    
Warrants issued, Aggregate Fair Market Value $ 0    
Warrants exercised (in shares) 0    
Warrants exercised, Weighted Average Exercise Price (in dollars per share) $ 0    
Warrants exercised, Aggregate Fair Market Value $ 0    
Warrants expired (in shares) (27)    
Warrants expired,Weighted Average Exercise Price (in dollars per share) $ 92.53    
Warrants expired, Aggregate Fair Market Value $ 1,758    
Outstanding (in shares) 50 77  
Warrants Outstanding, Weighted Average Exercise Price (in dollars per share) $ 56.25 $ 69.04