XML 62 R60.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Commitments and Contingencies (Details) |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Oct. 31, 2014 Fixed Purchase Price [Member] | Oct. 31, 2014 Purchase Price To Be Determined [Member] | Oct. 31, 2014 One Earth Energy And Nu Gen Energy [Member] lb T bu gal | Jan. 31, 2014 One Earth Energy [Member]
Commitments and Contingencies (Details) [Line Items] |  |  |  |
Quantity of Bushels under Forward Purchase Contract (in US Bushels) |  |  | 8,400,000 |
Percentage Of Purchase Contracts | 13.00% | 87.00% |  |
Quantity of Ethanol under Sales Commitment (in US Gallons) |  |  | 42,500,000 |
Quantity of Distillers Grains Under Sales Commitment (in US Tons) |  |  | 122,000 |
Quantity of Non-food Grade Corn Oil Under Sales Commitments (in Pounds) |  |  | 10,200,000 |
Supply Commitment Expected Period Of Delivery |  |  | They expect to deliver a majority of the ethanol, distillers grains and non-food grade corn oil through March 2015. |
Maximum Period to Notify Other Party for Grain Agreement Period Extension |  |  |  | 100 months

X
- Details
Name: | rex_CommitmentsandContingenciesDetailsLineItems
Namespace Prefix: | rex_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maximum period to notify other party for grain agreement period extension. + References No definition available. + Details
Name: | rex_MaximumPeriodToNotifyOtherPartyForGrainAgreementPeriodExtension
Namespace Prefix: | rex_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | rex_PercentageOfPurchaseContracts
Namespace Prefix: | rex_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Quantity of bushels under forward purchase contract. + References No definition available. + Details
Name: | rex_QuantityOfBushelsUnderForwardPurchaseContract
Namespace Prefix: | rex_
Data Type: | num:volumeItemType
Balance Type: | na
Period Type: | instant

X
- Definition Quantity of distillers grains under sales commitment. + References No definition available. + Details
Name: | rex_QuantityOfDistillersGrainsUnderSalesCommitment
Namespace Prefix: | rex_
Data Type: | num:massItemType
Balance Type: | na
Period Type: | instant

X
- Definition Quantity of ethanol under sales commitment. + References No definition available. + Details
Name: | rex_QuantityOfEthanolUnderSalesCommitment
Namespace Prefix: | rex_
Data Type: | num:volumeItemType
Balance Type: | na
Period Type: | instant

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | rex_QuantityOfNonFoodGradeCornOilUnderSalesCommitments
Namespace Prefix: | rex_
Data Type: | num:massItemType
Balance Type: | na
Period Type: | instant

X
- Definition Supply commitment expected period of delivery. + References No definition available. + Details
Name: | rex_SupplyCommitmentExpectedPeriodOfDelivery
Namespace Prefix: | rex_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration