CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Jan. 31, 2016	Jan. 31, 2015	Jan. 31, 2014
Net sales and revenue	$ 436,488	$ 572,230	$ 666,045
Cost of sales	385,654	430,291	601,757
Gross profit	50,834	141,939	64,288
Selling, general and administrative expenses	(19,813)	(19,422)	(17,846)
Gain on sale of investment	10,385
Equity in income of unconsolidated ethanol affiliates	8,984	32,229	17,175
Interest and other income	625	368	195
Interest expense		(2,074)	(3,898)
Gain (loss) on disposal of real estate and property and equipment, net	503	(238)
Income from continuing operations before income taxes	51,518	152,802	59,914
Provision for income taxes	(14,108)	(49,649)	(20,751)
Income from continuing operations	37,410	103,153	39,163
Income from discontinued operations, net of tax		234	325
Gain on disposal of discontinued operations, net of tax		327	741
Net income	37,410	103,714	40,229
Net income attributable to noncontrolling interests	(5,974)	(16,377)	(5,156)
Net income attributable to REX common shareholders	$ 31,436	$ 87,337	$ 35,073
Weighted average shares outstanding – basic (in Shares)	7,297	8,109	8,137
Basic income per share from continuing operations attributable to REX common shareholders (in Dollars per share)	$ 4.31	$ 10.70	$ 4.18
Basic income per share from discontinued operations attributable to REX common shareholders (in Dollars per share)		0.03	0.04
Basic income per share on disposal of discontinued operations attributable to REX common shareholders (in Dollars per share)		0.04	0.09
Basic net income per share attributable to REX common shareholders (in Dollars per share)	$ 4.31	$ 10.77	$ 4.31
Weighted average shares outstanding – diluted (in Shares)	7,307	8,118	8,180
Diluted income per share from continuing operations attributable to REX common shareholders (in Dollars per share)	$ 4.30	$ 10.69	$ 4.16
Diluted income per share from discontinued operations attributable to REX common shareholders (in Dollars per share)		0.03	0.04
Diluted income per share on disposal of discontinued operations attributable to REX common shareholders (in Dollars per share)		0.04	0.09
Diluted net income per share attributable to REX common shareholders (in Dollars per share)	$ 4.30	$ 10.76	$ 4.29
Amounts attributable to REX common shareholders:
Income from continuing operations, net of tax	$ 31,436	$ 86,776	$ 34,007
Income from discontinued operations, net of tax		561	1,066
Net income	$ 31,436	$ 87,337	$ 35,073