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v3.3.1.900

Supplementary Cash Flow Information (Details) - USD ($) $ in Thousands | 9 Months Ended
--- | ---
Jan. 31, 2016 | Jan. 31, 2015
Supplemental Cash Flow Elements [Abstract] |  |
State and local income tax payments | $ 183 | $ 299
Federal income tax payments to the Parent | $ 2,695 | $ 2,560

X
- References No definition available. + Details
Name: | us-gaap_SupplementalCashFlowElementsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount represents Federal income tax payments to the Parent. + References No definition available. + Details
Name: | valu_FederalIncomeTaxPayments
Namespace Prefix: | valu_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount represents State and local income tax payments. + References No definition available. + Details
Name: | valu_StateAndLocalIncomeTaxPayments
Namespace Prefix: | valu_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration