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Note 1 - Basis of Presentation and Summary of Significant Accounting Policies - Summary of Other Operating Expenses (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Restructuring expenses (see Note 15) $ 179   $ 575  
Unclaimed property audits expense (see Note 13) 0   347  
Unclaimed property audits expense (see Note 13) 0   347  
Employee retention credit fees (see Note 5) 0   472  
Employee retention credit fees (see Note 5) 0   472  
Total other operating expenses $ 179 $ 0 $ 1,394 $ 0