Note 16 - Stock Option Plans - Stock Option Activiy (Details) - USD ($) $ / shares in Units, shares in Thousands	12 Months Ended
	Jan. 31, 2024	Jan. 31, 2023
Outstanding, number of shares (in shares)	410
Outstanding, weighted average exercise price (in dollars per share)	$ 28.41
Outstanding, weighted average remaining contractual term (Year)	5 years 25 days	5 years 10 months 28 days
Outstanding, intrinsic value	$ 0	$ 0
Granted, number of shares (in shares)	0
Granted, weighted average exercise price (in dollars per share)	$ 0
Exercised, number of shares (in shares)	0	0
Exercised, weighted average exercise price (in dollars per share)	$ 0
Forfeited, number of shares (in shares)	(35)
Forfeited, weighted average exercise price (in dollars per share)	$ 39.67
Expired, number of shares (in shares)	(16)
Expired, weighted average exercise price (in dollars per share)	$ 13.23
Outstanding, number of shares (in shares)	359	410
Outstanding, weighted average exercise price (in dollars per share)	$ 27.98	$ 28.41
Exercisable, number of shares (in shares)	284
Exercisable, weighted average exercise price (in dollars per share)	$ 32.35
Exercisable, weighted average remaining contractual term (Year)	4 years 3 months
Exercisable, intrinsic value	$ 0
Nonvested, number of shares (in shares)	75
Nonvested, weighted average exercise price (in dollars per share)	$ 11.32
Nonvested, weighted average remaining contractual term (Year)	8 years 2 months 15 days
Nonvested, intrinsic value	$ 0