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Note 8 - Income Taxes (Details Textual) - USD ($)	3 Months Ended
Note 8 - Income Taxes (Details Textual) - USD ($)	Apr. 30, 2026	Apr. 30, 2025	Apr. 30, 2025	Jan. 31, 2026
Income Tax Expense (Benefit)	$ 476,000	$ 294,000
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	$ 65,000	$ (676,000)	$ (676,000)
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%
Deferred Tax Liability Not Recognized, Amount of Unrecognized Deferred Tax Liability, Undistributed Earnings of Foreign Subsidiaries				$ 0
Unrecognized Tax Benefits	$ 0			$ 0
Income Tax Jurisdiction, Domestic Federal [Member]
Open Tax Year	2022 2023 2024 2025 2026
Income Tax Jurisdiction, Domestic State and Local [Member]
Open Tax Year	2021 2022 2023 2024 2025 2026
Income Tax Jurisdiction, Foreign [Member] \| Inland Revenue, Singapore (IRAS) [Member]
Open Tax Year	2018 2019 2020 2021 2022 2023 2024 2025 2026
Income Tax Jurisdiction, Foreign [Member] \| Other Foreign Tax Authorities [Member]
Open Tax Year	2019 2020 2021 2022 2023 2024 2025 2026