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Note 12 - Income Taxes (Details Textual) - USD ($)
$ in Thousands
3 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Income Tax Expense (Benefit) $ 121 $ 32
Liability for Uncertainty in Income Taxes, Current 0  
Unrecognized Tax Benefits $ 0  
Maximum [Member]    
Income Tax Expense (Benefit)   $ 100