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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
Mar. 31, 2023
Mar. 31, 2022
Product cost of goods sold $ 1,188 $ 1,459
Related Party [Member]    
NeutroPhase 0 148
Product cost of goods sold (0) 134
NeutroPhase [Member] | Related Party [Member]    
NeutroPhase 0 148
Product cost of goods sold $ (0) $ 134