Note 3 - Correction of Immaterial Errors (Details Textual) - USD ($) $ in Thousands	12 Months Ended		24 Months Ended
	Jan. 31, 2020	Jan. 31, 2019	Jan. 31, 2020	Feb. 01, 2018	Jan. 31, 2018
Retained Earnings (Accumulated Deficit), Ending Balance	$ (715)	$ (4,291)	$ (715)		$ (3,741)
Net Income (Loss) Attributable to Parent, Total	$ 3,576	(550)
Errors Relating to Accounting for Leases with Escalation Clauses [Member]
Cumulative Effect on Retained Earnings, Net of Tax, Total			$ 600
Retained Earnings (Accumulated Deficit), Ending Balance				$ (600)
Net Income (Loss) Attributable to Parent, Total		$ (100)