Note 6 - Income Taxes (Details Textual) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jul. 31, 2024	Jul. 31, 2023	Jul. 31, 2024	Jul. 31, 2023
Effective Income Tax Rate Reconciliation, Percent	23.00%	45.00%	25.00%	97.00%
Undistributed Earnings of Foreign Subsidiaries	$ 0.7		$ 0.7

Amount of undistributed earnings of foreign subsidiaries intended to be permanently reinvested outside the country of domicile.

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