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Contingencies (Minimum Self Insurance Payments) (Details) (USD $) In Thousands, unless otherwise specified | Jan. 31, 2015
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Self Insurance, Future Estimated Payments Due |
Estimated self insurance payments due in 2015 | $ 400 virc_EstimatedSelfInsurancePaymentsNextTwelveMonths
Estimated self insurance payments due in 2016 | 375 virc_EstimatedSelfInsurancePaymentsDueInTwoYears
Estimated self insurance payments due in 2017 | 375 virc_EstimatedSelfInsurancePaymentsDueInThreeYears
Estimated self insurance payments due in 2018 | 375 virc_EstimatedSelfInsurancePaymentsDueInFourYears
Estimated self insurance payments due in 2019 | 375 virc_EstimatedSelfInsurancePaymentsDueInFiveYears
Estimated self insurance payments due thereafter | 250 virc_EstimatedSelfInsurancePaymentsDueThereafter
Estimated self insurance payments, gross | 2,150 virc_EstimatedSelfInsurancePaymentsGross
Discount to net present value | (20)virc_PresentValueOfEstimatedSelfInsurancePaymentsDiscounted
Estimated self insurance payments, net | $ 2,130 virc_EstimatedSelfInsurancePaymentsNet

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- Definition Estimated Self Insurance Payments, Due in Five Years + References No definition available. + Details
Name: | virc_EstimatedSelfInsurancePaymentsDueInFiveYears
Namespace Prefix: | virc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Estimated Self Insurance Payments, Due in Four Years + References No definition available. + Details
Name: | virc_EstimatedSelfInsurancePaymentsDueInFourYears
Namespace Prefix: | virc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Estimated Self Insurance Payments, Due in Three Years + References No definition available. + Details
Name: | virc_EstimatedSelfInsurancePaymentsDueInThreeYears
Namespace Prefix: | virc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Estimated Self Insurance Payments, Due in Two Years + References No definition available. + Details
Name: | virc_EstimatedSelfInsurancePaymentsDueInTwoYears
Namespace Prefix: | virc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Estimated Self Insurance Payments, Due Thereafter + References No definition available. + Details
Name: | virc_EstimatedSelfInsurancePaymentsDueThereafter
Namespace Prefix: | virc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Estimated Self Insurance Payments, Gross + References No definition available. + Details
Name: | virc_EstimatedSelfInsurancePaymentsGross
Namespace Prefix: | virc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Estimated Self Insurance Payments, Net + References No definition available. + Details
Name: | virc_EstimatedSelfInsurancePaymentsNet
Namespace Prefix: | virc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Estimated Self Insurance Payments, Next Twelve Months + References No definition available. + Details
Name: | virc_EstimatedSelfInsurancePaymentsNextTwelveMonths
Namespace Prefix: | virc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Present Value of Estimated Self Insurance Payments, Discounted + References No definition available. + Details
Name: | virc_PresentValueOfEstimatedSelfInsurancePaymentsDiscounted
Namespace Prefix: | virc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Details
Name: | virc_SelfInsuranceFutureEstimatedPaymentsDueAbstract
Namespace Prefix: | virc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration