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Commitments (Lease Terms) (Details)	12 Months Ended
	Jan. 31, 2015
Manufacturing and Distribution Facility in Torrance, CA [Member]
Property Subject to or Available for Operating Lease [Line Items]
Operating lease period	5 years
Manufacturing Facility in Conway, AR [Member]
Property Subject to or Available for Operating Lease [Line Items]
Operating lease period	10 years

X

- Definition

Term of the lessor's leasing arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Details

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

X

- Details

Name:	us-gaap_MajorPropertyClassAxis=virc_ManufacturingAndDistributionFacilityInTorranceCaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_MajorPropertyClassAxis=virc_ManufacturingFacilityInConwayArMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: