Note 6 - Income Taxes (Details Textual) - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Apr. 30, 2026 |
Apr. 30, 2025 |
|
| Effective Income Tax Rate Reconciliation, Percent | 34.00% | 21.00% |
| Undistributed Earnings of Foreign Subsidiaries | $ 1.4 | |
| X | ||||||||||
- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of undistributed earnings of foreign subsidiaries intended to be permanently reinvested outside the country of domicile. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|