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Note 5 - Goodwill and Intangible Assets - Schedule of Indefinite Lived Intangible Assets (Details) - USD ($) $ in Thousands | 12 Months Ended
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Mar. 31, 2026 | Mar. 31, 2025
Intangible Asset, Excluding Goodwill, Indefinite-Lived, Impairment Loss | $ 0 | $ 3,900
Trade Names [Member] |  |
Balance | 774 | 4,637
Acquisitions | 0 | 0
Intangible Asset, Excluding Goodwill, Indefinite-Lived, Impairment Loss | 0 | (3,863)
Balance | $ 774 | $ 774

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