XML 75 R60.htm IDEA: XBRL DOCUMENT v3.3.1.900

DERIVATIVE FINANCIAL INSTRUMENTS (Details) - Schedule of Gains or Losses of Derivative Financial Instruments $ in Thousands	12 Months Ended
	Jan. 31, 2016 USD ($)
Schedule of Gains or Losses of Derivative Financial Instruments [Abstract]
Cost of sales	$ (382)

X

- References

No definition available.

+ Details

Name:	rex_ScheduleOfGainsOrLossesOfDerivativeFinancialInstrumentsAbstract
Namespace Prefix:	rex_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount of the cost of sales reported by an equity method investment of the entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721683-107760

+ Details

Name:	us-gaap_EquityMethodInvestmentSummarizedFinancialInformationCostOfSales
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration