Note 10 - Income Taxes (Details Textual) - USD ($)	3 Months Ended
	Apr. 30, 2022	Apr. 30, 2021
Income Tax Expense (Benefit), Total	$ 211,000	$ (145,000)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total	(2,594,000)	(3,846,000)
Deferred Tax Liabilities, Undistributed Foreign Earnings	0
Unrecognized Tax Benefits, Ending Balance	$ 0	$ 0