NET INCOME PER SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2023	Oct. 31, 2022
NET INCOME PER SHARE
Net income	$ 5,464	$ 7,758	$ 20,340	$ 19,465
Weighted average number of shares outstanding - basic	13,328	13,781	13,381	14,268
Effects of stock awards	231	31	168	82
Weighted average number of shares outstanding - diluted	13,559	13,812	13,549	14,350
Basic (in dollars per share)	$ 0.41	$ 0.56	$ 1.52	$ 1.36
Diluted (in dollars per share)	$ 0.40	$ 0.56	$ 1.50	$ 1.36