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Note 19 - Major Customers, Suppliers and Related Information - Schedule of Major Customers (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Mar. 31, 2023
Mar. 31, 2022
Product sales $ 11,213 $ 13,168 $ 21,700 $ 23,845
Americas [Member]        
Product sales 10,019 10,095 19,182 19,531
Asia Pacific [Member]        
Product sales 545 2,147 1,304 2,455
EMEA [Member]        
Product sales $ 649 $ 926 $ 1,214 $ 1,859