XML 79 R65.htm IDEA: XBRL DOCUMENT
v2.4.0.6

OTHER ASSETS (Detail) - Future Amortization of Prepaid Commissions (USD $) In Thousands, unless otherwise specified | Jan. 31, 2013
--- | ---
2014 | $ 164

X
- Definition Amortization of prepaid commissions next rolling twelve months. + References No definition available. + Details
Name: | rex_AmortizationOfPrepaidCommissionsNextRollingTwelveMonths
Namespace Prefix: | rex_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant