Note 7 - Income Taxes - Uncertain Tax Positions (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2024	Jan. 31, 2023
Balance at beginning of year	$ 1,673	$ 1,611
Decreases in positions taken in a prior period	(256)
Decreases in positions taken in a prior period		0
Increases in positions taken in a current period	143	159
Decreases due to lapse of statute of limitations	(21)	(3)
Decreases due to settlements	(106)	(94)
Balance at end of year	$ 1,433	$ 1,673