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Note 5 - Goodwill and Other Intangibles (Details Textual) - USD ($)
$ in Thousands
3 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Goodwill, Impairment Loss $ 0  
Customer Relationship, Core Technology and Know-how [Member]    
Amortization of Intangible Assets 500 $ 700
Backlog [Member]    
Amortization of Intangible Assets $ 100 $ 100