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Note 12 - Income Taxes (Details Textual) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Income Tax Expense (Benefit) | $ 106 | $ (14) | $ 228 | $ 18
Liability for Uncertainty in Income Taxes, Current | 0 |  | 0 |
Unrecognized Tax Benefits | $ 0 |  | $ 0 |
Maximum [Member] |  |  |  |
Income Tax Expense (Benefit) |  | $ 100 |  | $ 100

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