The carrying amount of assets an investment adviser manages on behalf of investors.

No definition available.

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

- Definition

Repayment received or receivable for expenses incurred on behalf of a client or customer, other than those reimbursements received by landlords from tenants.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 605

-SubTopic 45

-Section 45

-Paragraph 23

-URI http://asc.fasb.org/extlink&oid=21915142&loc=d3e60722-111653

+ Details

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

- Details

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

- Definition

Amount represents Federal income tax payments to the Parent.

+ References

No definition available.

+ Details

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Namespace Prefix:	valu_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents distributable amounts earned through the balance sheet date, which is included in the Investment in variable interest entity and not yet paid.

+ References

No definition available.

+ Details

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Namespace Prefix:	valu_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents percentage of non-voting profits interest.

+ References

No definition available.

+ Details

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

- Definition

Represents percentage of non-voting revenues interest based on the amount of EAM's adjusted gross revenues, excluding ES's distribution revenues.

+ References

No definition available.

+ Details

Name:	valu_NonVotingRevenuesInterestPercent
Namespace Prefix:	valu_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

+ Details

Name:	valu_OwnershipPercentageByParent
Namespace Prefix:	valu_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the stated percentage of assets increased (decreased) in unconsolidated entities.

+ References

No definition available.

+ Details

Name:	valu_PercentageOfAssetsIncreasedDecreasedInUnconsolidatedEntities
Namespace Prefix:	valu_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the stated percentage of non voting profits interests due from ex-subsidiary payable to parent under agreement.

+ References

No definition available.

+ Details

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

- Definition

Represents the percentage of non voting revenues interest in unconsolidated entity.

+ References

No definition available.

+ Details

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

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=valu_EulavAssetManagementLlcMember
Namespace Prefix:
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Period Type:

Related Party Transactions (Detail Textuals) (USD $)	3 Months Ended		6 Months Ended		9 Months Ended
Related Party Transactions (Detail Textuals) (USD $)	Jul. 31, 2014	Jul. 31, 2013	Oct. 31, 2014	Oct. 31, 2013	Jan. 31, 2015	Jan. 31, 2014	Apr. 30, 2014
Related Party Transaction [Line Items]
Federal income tax payments to the Parent					$ 2,560,000valu_FederalIncomeTaxPaymentsToParent	$ 1,054,000valu_FederalIncomeTaxPaymentsToParent
EAM Trust
Related Party Transaction [Line Items]
Total assets of value line funds managed by EAM					2,340,000,000	2,310,000,000
Percentage of assets increased in funds					1.60%
Non-voting profits interest in EAM					50.00%
Percentage of non-voting revenues interest in unconsolidated entity	49.18%	46.66%	49.63%	47.27%	49.80%	47.91%
Non voting profits interest in variable entity not yet paid					2,008,000		1,887,000
Percentage of ownership in outstanding shares of common stock of the company by parent					87.98%
EAM Trust \| Minimum
Related Party Transaction [Line Items]
Investment management fee revenues from its mutual fund and separate accounts business					41.00%
Percentage of non voting profits interests due each quarter from EAM					90.00%
EAM Trust \| Maximum
Related Party Transaction [Line Items]
Investment management fee revenues from its mutual fund and separate accounts business					55.00%
Value Line Inc
Related Party Transaction [Line Items]
Reimbursed income					$ 104,000	$ 113,000