XML 50 R38.htm IDEA: XBRL DOCUMENT v3.7.0.1

Retirement Plans (Narrative) (Details)	3 Months Ended
	Apr. 30, 2017
VIP Retirement Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Rate of compensation increase	50.00%
Benefit Of Average Compensation Years	5 years
Other Pension Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Director providing service to company	10 years

X

- Definition

Weighted average rate of compensation increase used to determine net periodic benefit cost of defined benefit plan. Plan includes, but is not limited to, pay-related defined benefit plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (k)(2)
-URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920

+ Details

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Balance Type:	na
Period Type:	duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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X

- Definition

Benefit of average compensation years.

+ References

No definition available.

+ Details

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Period Type:	duration

X

- Definition

Director providing service to the company.

+ References

No definition available.

+ Details

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Namespace Prefix:	virc_
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Balance Type:	na
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X

- Details

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Namespace Prefix:
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X

- Details

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