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Note 7 - Trade Receivables (Details Textual) - USD ($)
$ in Millions
Sep. 30, 2023
Dec. 31, 2022
Sep. 30, 2022
Accounts Receivable, Allowance for Credit Loss, Current $ 2.1 $ 3.5 $ 2.5
Contract with Customer, Refund Liability, Current $ 1.8 $ 2.1 $ 2.2