v3.26.1
Note 8 - Stockholders' Equity (Tables)
9 Months Ended
Mar. 31, 2026
Notes Tables  
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]
  

Number of Shares Underlying Warrants (In thousands)

  

Weighted Average Exercise Price

  

Aggregate Fair Market Value at Issuance (In thousands)

  

Weighted Average Remaining Contractual Term (Years)

 

Outstanding June 30, 2025

  77  $69.04  $3,553   0.63 

Warrants issued

            

Warrants exercised

            

Warrants expired

  (27)  92.53  $1,758    

Outstanding March 31, 2026

  50   56.25  $1,796   0.01