Consolidated Statements of Income and Comprehensive Income (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Jan. 31, 2015	Jan. 31, 2014	Jan. 31, 2013
Net sales	$ 378,153	$ 394,677	$ 406,175
Cost of sales	274,907	275,323	278,502
Gross profit	103,246	119,354	127,673
Research and development expenses	17,440	16,576	13,367
Selling, general and administrative expenses	42,005	38,784	36,614
Operating income	43,801	63,994	77,692
Other (expense), net	(300)	(371)	(46)
Income before income taxes	43,501	63,623	77,646
Income taxes	11,705	20,721	25,091
Net income	31,796	42,902	52,555
Net (loss) income attributable to noncontrolling interest	63	(1)	10
Net income attributable to Raven Industries, Inc.	31,733	42,903	52,545
Net income per common share:
─ Basic (in usd per share)	$ 0.86	$ 1.18	$ 1.45
─ Diluted (in usd per share)	$ 0.86	$ 1.17	$ 1.44
Comprehensive income:
Net income	31,796	42,902	52,555
Other comprehensive income (loss), net of tax:
Foreign currency translation	(1,466)	(424)	(3)
Postretirement benefits, net of income tax benefit (expense) of $1,187, ($183), and $70, respectively	(2,204)	340	(130)
Other comprehensive income (loss), net of tax	(3,670)	(84)	(133)
Comprehensive income	28,126	42,818	52,422
Comprehensive income (loss) attributable to noncontrolling interest	63	(1)	10
Comprehensive income attributable to Raven Industries, Inc.	$ 28,063	$ 42,819	$ 52,412