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Note 7 - Accounts Receivable, Net - Accounts Receivable, Net (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Allowance for doubtful accounts $ (725) $ (838)
Accounts Receivable, after Allowance for Credit Loss, Current, Total 66,474 55,067
Trade Accounts Receivable [Member]    
Accounts receivable, gross 47,046 38,819
Unbilled Receivable [Member]    
Accounts receivable, gross $ 20,153 $ 17,086