Note 10 - Income Taxes (Details Textual) - USD ($)	3 Months Ended		9 Months Ended
	Oct. 31, 2022	Oct. 31, 2021	Oct. 31, 2022	Oct. 31, 2021
Income Tax Expense (Benefit), Total	$ 37,000	$ 59,000	$ 379,000	$ 111,000
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total	(3,276,000)	(2,020,000)	(7,497,000)	(8,408,000)
Deferred Tax Liabilities, Undistributed Foreign Earnings	0		0
Unrecognized Tax Benefits, Ending Balance	$ 0	$ 0	$ 0	$ 0