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Note 6 - Accounts Receivable, Net - Accounts Receivable, Net (Details) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Allowance for doubtful accounts $ (847) $ (725)
Accounts Receivable, after Allowance for Credit Loss, Current 56,627 66,474
Trade Accounts Receivable [Member]    
Accounts receivable, gross 35,841 47,046
Unbilled Receivable [Member]    
Accounts receivable, gross $ 21,633 $ 20,153