v3.26.3
Note 2 - Summary of Significant Accounting Policies - Revenue by Product (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Revenue $ 913 $ 1,049 $ 913 $ 1,049
Product [Member]        
Revenue 610 804    
Grant [Member]        
Revenue 205 115    
Service [Member]        
Revenue $ 97 $ 130