CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2024	Oct. 31, 2023	Oct. 31, 2024	Oct. 31, 2023
CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS
REVENUES	$ 257,008	$ 163,755	$ 641,705	$ 408,779
Cost of revenues	212,681	144,520	548,329	351,578
GROSS PROFIT	44,327	19,235	93,376	57,201
Selling, general and administrative expenses	13,995	11,375	37,848	32,467
INCOME FROM OPERATIONS	30,332	7,860	55,528	24,734
Other income, net	6,646	3,733	17,044	7,222
INCOME BEFORE INCOME TAXES	36,978	11,593	72,572	31,956
Income tax expense	8,968	6,129	18,482	11,616
NET INCOME	28,010	5,464	54,090	20,340
OTHER COMPREHENSIVE INCOME, NET OF TAXES
Foreign currency translation adjustments	(957)	(882)	(1,933)	(627)
Net unrealized losses on available-for-sale securities	(659)	(427)	(169)	(1,147)
COMPREHENSIVE INCOME	$ 26,394	$ 4,155	$ 51,988	$ 18,566
NET INCOME PER SHARE
Basic (in dollars per share)	$ 2.07	$ 0.41	$ 4.04	$ 1.52
Diluted (in dollars per share)	$ 2.00	$ 0.40	$ 3.91	$ 1.50
WEIGHTED AVERAGE SHARES OUTSTANDING
Basic (in shares)	13,530	13,328	13,398	13,381
Diluted (in shares)	14,034	13,559	13,830	13,549
CASH DIVIDENDS PER SHARE	$ 0.375	$ 0.300	$ 0.975	$ 0.800