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Seasonality (Details)	3 Months Ended
	Apr. 30, 2021
Sales [Member]
Seasonality (Textual) [Abstract]
The market for educational furniture is marked by extreme seasonality	50.00%

X

- Definition

Extreme seasonality goods.

+ References

No definition available.

+ Details

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

X

- Definition

Seasonality.

+ References

No definition available.

+ Details

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

X

- Details

Name:	us-gaap_IncomeStatementLocationAxis=us-gaap_SalesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: