Note 7 - Leases - Lease Costs (Details) $ in Thousands	12 Months Ended
	Jan. 31, 2020 USD ($)
Amortization of ROU assets	$ 208
Interest on lease liabilities	58
Operating lease costs	2,326
Short-term lease costs (1)	425	[1]
Sub-lease income	(81)
Total Lease costs	$ 2,936

[1] Includes variable lease costs, which are immaterial