INCOME TAXES - Income Tax Expense Reconciliation (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2024	Jul. 31, 2023	Jul. 31, 2024	Jul. 31, 2023
INCOME TAXES
Federal corporate income tax rate (as percent)			21.00%	21.00%
Computed expected income tax expense			$ 7,475	$ 4,276
State income taxes, net of federal tax effect			1,186	455
Unrecognized tax loss benefit			961	529
Excess executive compensation			404	400
Stock-based compensation windfall			(531)	(126)
Foreign tax rate differential			(240)	(643)
GILTI				505
Tax credits				(453)
Other permanent differences and adjustments, net			259	544
Income tax expense	$ 6,083	$ 4,592	$ 9,514	$ 5,487