Note 21 - Sales and Major Customers - Summary of Revenues (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2023	Jan. 31, 2022
Total revenues	$ 35,091	$ 23,107
UK and Europe [Member]
Total revenues	14,814	8,821
CANADA
Total revenues	12,876	11,244
Latin America [Member]
Total revenues	483	633
Non-US [Member]
Total revenues	$ 28,173	$ 20,698