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Lease Commitments (Detail Textuals) (USD $)	9 Months Ended		0 Months Ended
	Jan. 31, 2015	Jan. 31, 2014	Feb. 07, 2013 sqft
Operating Leased Assets [Line Items]
Rental expenses	$ 951,000us-gaap_LeaseAndRentalExpense	$ 1,896,000us-gaap_LeaseAndRentalExpense
Additional short term overlapping rent expense	771,000valu_AdditionalShortTermOverlappingRentExpense
Citibank, N.A. (the "Sublandlord")
Operating Leased Assets [Line Items]
Area of land for lease			44,493valu_AreaOfLandForLease / us-gaap_LeaseArrangementTypeAxis = valu_CitiBankMember
Base rent under the sublease agreement per annum			1,468,269us-gaap_OperatingLeasesIncomeStatementSubleaseRevenue / us-gaap_LeaseArrangementTypeAxis = valu_CitiBankMember
Security deposit in cash			$ 489,423us-gaap_SecurityDeposit / us-gaap_LeaseArrangementTypeAxis = valu_CitiBankMember

X

- Definition

Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

+ References

No definition available.

+ Details

Name:	us-gaap_LeaseAndRentalExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

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

X

- Definition

The amount of revenue recognized for the period under subleasing arrangements.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 20

-Section 55

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6584307&loc=d3e41620-112719

+ Details

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

X

- Definition

The amount of an asset, typically cash, provided to a counterparty to provide certain assurance of performance by the entity pursuant to the terms of a written or oral agreement, such as a lease.

+ 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 210.5-02.8,17)

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

+ Details

Name:	us-gaap_SecurityDeposit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Represents the amount of additional short term overlapping rent expense during the period.

+ References

No definition available.

+ Details

Name:	valu_AdditionalShortTermOverlappingRentExpense
Namespace Prefix:	valu_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Represents area of land for lease.

+ References

No definition available.

+ Details

Name:	valu_AreaOfLandForLease
Namespace Prefix:	valu_
Data Type:	num:areaItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_LeaseArrangementTypeAxis=valu_CitiBankMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: