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Note 5 - Income Taxes (Details Textual) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Apr. 30, 2024 | Apr. 30, 2023
Effective Income Tax Rate Reconciliation, Percent | 30.00% | (208.00%)
Undistributed Earnings of Foreign Subsidiaries | $ 0.7 |

X
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