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Stockholders' Equity (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Apr. 30, 2013
Stockholders' Equity (Textual) [Abstract]
Remained available for repurchases	$ 1.1

X

- Definition

The remaining repurchase amount authorized by an entity's Board of Directors under a stock repurchase plan.

+ References

No definition available.

+ Details

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

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- Details

Name:	virc_StockholdersEquityTextualAbstract
Namespace Prefix:	virc_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration