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

Maximum amount borrowed under the credit facility at any time during the period.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumAmountOutstandingDuringPeriod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ 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 210.5-02.19(b),22(b))

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

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

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

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

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

- Definition

The percentage points added to the reference rate or index during the adjustment period to compute the variable [fully indexed] rate on the loans receivable realized during the reporting period. This may be an effective margin for the period depending on the specific terms of the underlying loan agreement (for example, an annual disclosure for a loan with a quarterly adjustment period).

+ References

No definition available.

+ Details

Name:	us-gaap_LoansReceivableBasisSpreadOnVariableRateDuringPeriod
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The lowest amount of net worth (total assets minus total liabilities) required by secondary market investors or state-imposed regulatory mandates.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 948

-SubTopic 10

-Section 50

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=6490092&loc=d3e47304-110998

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 948

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (c)(a)

-URI http://asc.fasb.org/extlink&oid=6490092&loc=d3e47080-110998

+ Details

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

- Definition

Debt instrument, covenant, minimum ebitda

+ References

No definition available.

+ Details

Name:	virc_DebtInstrumentCovenantMinimumEbitda
Namespace Prefix:	virc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Debt instrument, covenant, maintained fixed charge coverage ratio

+ References

No definition available.

+ Details

Name:	virc_DebtInstrumentCovenantMinimumFixedChargeCoverageRatio
Namespace Prefix:	virc_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Judicial actions against excess line of credit facility

+ References

No definition available.

+ Details

Name:	virc_JudicialActionsAgainstExcessLineOfCreditFacility
Namespace Prefix:	virc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Line of credit facility borrowing base limitation.

+ References

No definition available.

+ Details

Name:	virc_LineOfCreditFacilityBorrowingBaseLimitation
Namespace Prefix:	virc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Line of credit facility increase accrued interest percentage.

+ References

No definition available.

+ Details

Name:	virc_LineOfCreditFacilityIncreaseAccruedInterestPercentage
Namespace Prefix:	virc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Line of Credit Facility, Increase(Decrease) in Borrowing Capacity

+ References

No definition available.

+ Details

Name:	virc_LineofCreditFacilityIncreaseDecreaseinBorrowingCapacity
Namespace Prefix:	virc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Line of credit facility sub- limit.

+ References

No definition available.

+ Details

Name:	virc_LineOfCreditFacilitySubLimit
Namespace Prefix:	virc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Provision to reduce borrowings under line of credit facility for period.

+ References

No definition available.

+ Details

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

- Definition

Provision to requires reduce borrowings under line of credit facility.

+ References

No definition available.

+ Details

Name:	virc_ProvisionToRequiresReduceBorrowingsUnderLineOfCreditFacility
Namespace Prefix:	virc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Debt (Narrative) (Details) (USD $)	3 Months Ended									3 Months Ended				0 Months Ended				3 Months Ended
Debt (Narrative) (Details) (USD $)	Apr. 30, 2014	Apr. 30, 2014 Accounts receivable [Member]	Apr. 30, 2014 Inventory [Member]	Apr. 30, 2014 Minimum [Member]	Apr. 30, 2014 Maximum [Member]	Apr. 30, 2014 Maximum [Member] Accounts receivable [Member]	Jan. 31, 2015 Credit Agreement [Member]	Apr. 30, 2014 Credit Agreement [Member]	Apr. 30, 2014 PNC [Member] Revolving Credit Facility [Member]	Jul. 14, 2012 PNC [Member] Revolving Credit Facility [Member] Amendment No. 1 to the Credit Agreement [Member]	Jun. 15, 2012 PNC [Member] Revolving Credit Facility [Member] Amendment No. 1 to the Credit Agreement [Member]	Jun. 14, 2012 PNC [Member] Revolving Credit Facility [Member] Amendment No. 1 to the Credit Agreement [Member]	Jul. 27, 2012 PNC [Member] Revolving Credit Facility [Member] Amendment No. 2 to the Credit Agreement [Member]	Apr. 15, 2014 PNC [Member] Revolving Credit Facility [Member] Amendment No. 7 To The Credit Agreement [Member]	Apr. 14, 2014 PNC [Member] Revolving Credit Facility [Member] Amendment No. 7 To The Credit Agreement [Member]	Apr. 30, 2014 PNC [Member] Revolving Credit Facility [Member] Credit Agreement [Member]	Dec. 22, 2011 PNC [Member] Revolving Credit Facility [Member] Credit Agreement [Member]	Apr. 30, 2014 Eurodollar [Member] Minimum [Member]	Apr. 30, 2014 Eurodollar [Member] Maximum [Member]	Apr. 30, 2014 Alternate Base Rate Loans [Member] London Interbank Offered Rate LIBOR [Member] Minimum [Member]	Apr. 30, 2014 Alternate Base Rate Loans [Member] London Interbank Offered Rate LIBOR [Member] Maximum [Member]
Line of Credit Facility [Line Items]
Increase(Decrease) in borrowing capacity										$ 3,000,000				$ (10,000,000)
Line of Credit Facility, Maximum Borrowing Capacity											9,000,000	6,000,000		50,000,000	60,000,000
Minimum EBITDA							5,512,000	(4,938,000)					300,000				1,600,000
Revolving credit facility				8,000,000	14,000,000
Sub-limit for issuances of letters of credit	3,000,000
Revolving credit facility borrowing base limitation		85.00%	60.00%			85.00%
Revolving credit facility bears interest range of																		1.75%	2.75%	0.75%	1.75%
Revolving Credit Facility bears interest increased	2.00%
Minimum tangible net worth covenant																19,771,000
Minimum fixed charge coverage ratio								1.00
Provision to reduce borrowings under the line	6,000,000
Provision to reduce borrowings under the line, period	60 days
Judgments or judicial actions against the borrowers in excess	250,000
Remaining borrowing capacity									$ 9,871,000