CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Apr. 30, 2021	Apr. 30, 2020
CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS
REVENUES	$ 126,341	$ 60,148
Cost of revenues	102,627	56,139
GROSS PROFIT	23,714	4,009
Selling, general and administrative expenses	9,892	10,344
INCOME (LOSS) FROM OPERATIONS	13,822	(6,335)
Other income, net	712	1,088
INCOME (LOSS) BEFORE INCOME TAXES	14,534	(5,247)
Income tax (expense) benefit	(3,768)	4,454
NET INCOME (LOSS)	10,766	(793)
Net loss attributable to non-controlling interests		(30)
NET INCOME (LOSS) ATTRIBUTABLE TO THE STOCKHOLDERS OF ARGAN, INC.	10,766	(763)
Foreign currency translation adjustments	(118)	(246)
COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO THE STOCKHOLDERS OF ARGAN, INC.	$ 10,648	$ (1,009)
NET INCOME (LOSS) PER SHARE ATTRIBUTABLE TO THE STOCKHOLDERS OF ARGAN, INC.
Basic	$ 0.68	$ (0.05)
Diluted	$ 0.67	$ (0.05)
WEIGHTED AVERAGE NUMBER OF SHARES OUTSTANDING
Basic	15,726	15,643
Diluted	15,961	15,643
CASH DIVIDENDS PER SHARE	$ 0.25	$ 0.25