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Contingencies (Details Textual) (USD $)	12 Months Ended
	Jan. 31, 2015	Jan. 31, 2014
Loss Contingencies [Line Items]
Liability retention losses	$ 30,000,000virc_SelfInsuranceStopLossCoverageAmount
Expected future losses	2,130,000us-gaap_SelfInsuranceReserve	2,425,000us-gaap_SelfInsuranceReserve
Estimated payout period	5 years
Discount rate	0.50%virc_AssumedDiscountRateSelfInsuranceAccrual	0.50%virc_AssumedDiscountRateSelfInsuranceAccrual
Product and General Liability [Member]
Loss Contingencies [Line Items]
Self insurance reserve	250,000virc_SelfInsuranceCoverageAmount / us-gaap_LossContingenciesByNatureOfContingencyAxis = virc_ProductAndGeneralLiabilityMember	250,000virc_SelfInsuranceCoverageAmount / us-gaap_LossContingenciesByNatureOfContingencyAxis = virc_ProductAndGeneralLiabilityMember
Workers Compensation [Member]
Loss Contingencies [Line Items]
Self insurance reserve	250,000virc_SelfInsuranceCoverageAmount / us-gaap_LossContingenciesByNatureOfContingencyAxis = virc_WorkersCompensationMember	250,000virc_SelfInsuranceCoverageAmount / us-gaap_LossContingenciesByNatureOfContingencyAxis = virc_WorkersCompensationMember
Automobile Losses [Member]
Loss Contingencies [Line Items]
Self insurance reserve	$ 50,000virc_SelfInsuranceCoverageAmount / us-gaap_LossContingenciesByNatureOfContingencyAxis = virc_AutomobileLossesMember	$ 50,000virc_SelfInsuranceCoverageAmount / us-gaap_LossContingenciesByNatureOfContingencyAxis = virc_AutomobileLossesMember

X

- Details

Name:	us-gaap_LossContingenciesLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Carrying amount (including both current and noncurrent portions) of accrued known and estimated losses incurred as of the balance sheet date for which no insurance coverage exists, and for which a claim has been made or is probable of being asserted, typically arising from workmen's compensation-type of incidents and personal injury to nonemployees from accidents on the entity's property.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.24)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Assumed Discount Rate, Self Insurance Accrual

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	instant

X

- Definition

Self Insurance Coverage Amount

+ References

No definition available.

+ Details

Name:	virc_SelfInsuranceCoverageAmount
Namespace Prefix:	virc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Self Insurance, Estimated Payout Period

+ References

No definition available.

+ Details

Name:	virc_SelfInsuranceEstimatedPayoutPeriod
Namespace Prefix:	virc_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

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- Definition

Self Insurance Stop Loss, Coverage Amount

+ References

No definition available.

+ Details

Name:	virc_SelfInsuranceStopLossCoverageAmount
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Data Type:	xbrli:monetaryItemType
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- Details

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- Details

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Balance Type:
Period Type:

X

- Details

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Period Type: