Note 21 - Concentrations (Details Textual) $ in Millions	12 Months Ended
	Jan. 31, 2022 USD ($)	Jan. 31, 2021
Deposits, Foreign, Total	$ 2.6
Accounts Receivable [Member] | Customer Concentration Risk [Member]
Number of Major Customers	2	3
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Two Customers [Member]
Concentration Risk, Percentage	10.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Three Customers [Member]
Concentration Risk, Percentage		10.00%
Revenue Benchmark [Member] | Customer Concentration Risk [Member]
Number of Major Customers	1	1
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Largest Customer [Member]
Concentration Risk, Percentage	23.00%	15.00%
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Five Largest Customers [Member]
Number of Major Customers	5
Concentration Risk, Percentage	51.00%