CONSOLIDATED STATEMENTS OF EARNINGS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Jan. 31, 2025	Jan. 31, 2024	Jan. 31, 2023
CONSOLIDATED STATEMENTS OF EARNINGS
REVENUES	$ 874,179	$ 573,333	$ 455,040
Cost of revenues	733,190	492,499	368,679
GROSS PROFIT	140,989	80,834	86,361
Selling, general and administrative expenses	52,794	44,376	44,692
INCOME FROM OPERATIONS	88,195	36,458	41,669
Other income, net	23,009	12,475	4,331
INCOME BEFORE INCOME TAXES	111,204	48,933	46,000
Income tax expense	25,745	16,575	11,296
NET INCOME	85,459	32,358	34,704
Net income attributable to non-controlling interest			1,606
NET INCOME ATTRIBUTABLE TO THE STOCKHOLDERS OF ARGAN, INC.	85,459	32,358	33,098
OTHER COMPREHENSIVE INCOME, NET OF TAXES
Foreign currency translation adjustments	(2,322)	(920)	(425)
Net unrealized (losses) gains on available-for-sale securities	(619)	199
COMPREHENSIVE INCOME ATTRIBUTABLE TO THE STOCKHOLDERS OF ARGAN, INC.	$ 82,518	$ 31,637	$ 32,673
NET INCOME PER SHARE ATTRIBUTABLE TO THE STOCKHOLDERS OF ARGAN, INC.
Basic (in dollars per share)	$ 6.35	$ 2.42	$ 2.35
Diluted (in dollars per share)	$ 6.15	$ 2.39	$ 2.33
WEIGHTED AVERAGE SHARES OUTSTANDING
Basic (in shares)	13,448	13,365	14,083
Diluted (in shares)	13,906	13,548	14,176
CASH DIVIDENDS PER SHARE	$ 1.35	$ 1.1	$ 1