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Note 2 - Assets Held For Sale - Assets and Liabilities Held For Sale (Details) - Disposal Group, Held-for-sale, Not Discontinued Operations [Member] - USD ($) $ in Thousands | Mar. 31, 2021 | Mar. 31, 2020
--- | --- | ---
Property, Plant and Equipment (net) | $ 8,656 |
Current Assets Held For Sale | $ 8,656 | $ 0

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