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Note 7 - Intangible Assets (Details Textual) - USD ($)
3 Months Ended 6 Months Ended
Jul. 31, 2025
Jul. 31, 2024
Jul. 31, 2025
Jul. 31, 2024
Amortization of Intangible Assets $ 145,000 $ 159,000 $ 294,000 $ 345,000