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Note 12 - Income Taxes (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2023
Dec. 31, 2022
Income Tax Expense (Benefit) $ 63 $ 127 $ 291 $ 144
Liability for Uncertainty in Income Taxes, Current 0   0  
Unrecognized Tax Benefits $ 0   $ 0  
Maximum [Member]        
Income Tax Expense (Benefit)   $ 100