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Note 6 - Assets Held For Sale - Assets and Liabilities Held For Sale (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Mar. 31, 2021
Current assets held for sale $ 5,979 $ 8,656
Disposal Group, Held-for-sale, Not Discontinued Operations [Member]    
Property, plant and equipment (net) 5,979 8,656
Current assets held for sale $ 5,979 $ 8,656