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Note 5 - Goodwill and Intangible Assets - Schedule of Indefinite Lived Intangible Assets (Details) (Parentheticals)
12 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Impairment Of Intangible Asset Indefinite Lived Excluding Goodwill Statement Of Income Or Comprehensive Income Extensible Enumeration Not Disclosed Flag true true