v3.26.1
Note 3 - Intangible Assets (Details Textual) - USD ($)
3 Months Ended 9 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2026
Mar. 31, 2025
Intangible Asset, Finite-Lived, Amortization Expense $ 15,000 $ 15,000 $ 44,000 $ 44,000