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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 |  |

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