CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) Share data in Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Apr. 30, 2014	Apr. 30, 2013
Net sales and revenue	$ 155,936,000	$ 178,424,000
Cost of sales	119,386,000	169,432,000
Gross profit	36,550,000	8,992,000
Selling, general and administrative expenses	(6,171,000)	(3,747,000)
Equity in income of unconsolidated affiliates	8,297,000	1,599,000
Interest and other income	52,000	42,000
Interest expense	(692,000)	(1,053,000)
(Losses) gains on derivative financial instruments, net	(4,000)	4,000
Income from continuing operations before income taxes	38,032,000	5,837,000
Provision for income taxes	(13,887,000)	(2,066,000)
Income from continuing operations	24,145,000	3,771,000
Income from discontinued operations, net of tax	55,000	171,000
Gain on disposal of discontinued operations, net of tax		131,000
Net income	24,200,000	4,073,000
Net income attributable to noncontrolling interests	(2,458,000)	(566,000)
Net income attributable to REX common shareholders	21,742,000	3,507,000
Weighted average shares outstanding – basic (in Shares)	8,117	8,158
Basic income per share from continuing operations attributable to REX common shareholders (in Dollars per share)	$ 2.67	$ 0.39
Basic income per share from discontinued operations attributable to REX common shareholders (in Dollars per share)	$ 0.01	$ 0.02
Basic income per share on disposal of discontinued operations attributable to REX common shareholders (in Dollars per share)		$ 0.02
Basic net income per share attributable to REX common shareholders (in Dollars per share)	$ 2.68	$ 0.43
Weighted average shares outstanding – diluted (in Shares)	8,149	8,200
Diluted income per share from continuing operations attributable to REX common shareholders (in Dollars per share)	$ 2.66	$ 0.39
Diluted income per share from discontinued operations attributable to REX common shareholders (in Dollars per share)	$ 0.01	$ 0.02
Diluted income per share on disposal of discontinued operations attributable to REX common shareholders (in Dollars per share)		$ 0.02
Diluted net income per share attributable to REX common shareholders (in Dollars per share)	$ 2.67	$ 0.43
Amounts attributable to REX common shareholders:
Income from continuing operations, net of tax	21,687,000	3,205,000
Income from discontinued operations, net of tax	55,000	302,000
Net income	$ 21,742,000	$ 3,507,000