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Note 16 - Related Party Transactions - Related Party Revenue, Cost of Goods Sold, and Expenses (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Cost of goods sold $ 1,427 $ 1,451 $ 4,919 $ 4,735
Related Party [Member]        
Related party revenue 0 0 1,043 657
Cost of goods sold 28 (0) 923 648
NeutroPhase [Member] | Related Party [Member]        
Related party revenue 0 0 1,043 657
Cost of goods sold $ 28 $ (0) $ 923 $ 648