NET INCOME PER SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2024	Jul. 31, 2023	Jul. 31, 2024	Jul. 31, 2023
NET INCOME PER SHARE
Net income	$ 18,198	$ 12,767	$ 26,080	$ 14,876
Weighted average number of shares outstanding - basic	13,403	13,403	13,331	13,408
Effects of stock awards	477	139	396	136
Weighted average number of shares outstanding - diluted	13,880	13,542	13,727	13,544
Basic (in dollars per share)	$ 1.36	$ 0.95	$ 1.96	$ 1.11
Diluted (in dollars per share)	$ 1.31	$ 0.94	$ 1.90	$ 1.10