CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2022	Jul. 31, 2021
CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS
REVENUES	$ 118,110	$ 133,008	$ 218,387	$ 259,349
Cost of revenues	93,723	105,356	174,262	207,983
GROSS PROFIT	24,387	27,652	44,125	51,366
Selling, general and administrative expenses	10,984	10,331	21,559	20,223
INCOME FROM OPERATIONS	13,403	17,321	22,566	31,143
Other income (expense), net	505	(260)	1,100	452
INCOME BEFORE INCOME TAXES	13,908	17,061	23,666	31,595
Income tax expense	(9,686)	(4,191)	(11,959)	(7,959)
NET INCOME	4,222	12,870	11,707	23,636
Foreign currency translation adjustments	(687)	(139)	(1,951)	(257)
COMPREHENSIVE INCOME	$ 3,535	$ 12,731	$ 9,756	$ 23,379
NET INCOME PER SHARE
Basic	$ 0.30	$ 0.82	$ 0.81	$ 1.50
Diluted	$ 0.30	$ 0.81	$ 0.80	$ 1.48
WEIGHTED AVERAGE NUMBER OF SHARES OUTSTANDING
Basic	14,134	15,769	14,516	15,748
Diluted	14,247	15,982	14,616	15,978
CASH DIVIDENDS PER SHARE	$ 0.25	$ 0.25	$ 0.50	$ 0.50