Note 10 - Income Taxes (Details Textual) - USD ($)	3 Months Ended		6 Months Ended
	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2022	Jul. 31, 2021
Income Tax Expense (Benefit), Total	$ 131,000	$ 197,000	$ 342,000	$ 52,000
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total	(1,627,000)	(2,542,000)	(4,221,000)	(6,388,000)
Deferred Tax Liabilities, Undistributed Foreign Earnings	0		0
Unrecognized Tax Benefits, Ending Balance	$ 0	$ 0	$ 0	$ 0