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Note 2 - Summary of Significant Accounting Policies (Details Textual)
$ in Thousands
 12 Months Ended
Jun. 30, 2025
USD ($)
Jun. 30, 2024
USD ($)
Jun. 30, 2023
USD ($)
Jun. 30, 2022
USD ($)
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest $ (5,790) $ (765) $ (3,161)  
Cash Provided by (Used in) Operating Activity, Continuing Operation (5,151)      
Retained Earnings (Accumulated Deficit) (36,069) (30,700)    
Translation Adjustment Functional to Reporting Currency, Net of Tax $ 0 0   $ 0
Foreign Currency Exchange Rate, Translation 7.8      
Asset Impairment Charges $ 0 2,158 0  
Interest Income, Short-Term Investment, Other 121 0 0  
Accounts Receivable, Credit Loss Expense (Reversal) 0 49 6  
Operating Lease, Impairment Loss 0 0 0  
Gain (Loss) on Termination of Lease (273) 0 0  
Impairment, Long-Lived Asset, Held-for-Use $ 0 0 0  
Impairment, Long-Lived Asset, Held-for-Use, Statement of Income or Comprehensive Income [Extensible Enumeration] Asset Impairment Charges      
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense $ 0 0 0  
Unrecognized Tax Benefits 0 0    
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit $ 0      
Number of Operating Segments 1      
Cash and Cash Equivalents [Member]        
Asset Impairment Charges $ 0 $ 0 $ 5,305