Note 4 - Revenue From Contracts With Customers - Contract Assets and Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2025	Jan. 31, 2024
Contract assets, balance	$ 26	$ 2
Revenue accrued	20	26
Amounts billed	(26)	(2)
Contract assets, balance	20	26
Contract liabilities, balance	3,649	359
Deferred revenue and customer deposits	1,526	3,614
Revenue recognized	(3,383)	(324)
Contract liabilities, balance	$ 1,792	$ 3,649