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v3.19.2

Note 2 - Supplementary Cash Flow Information - Supplementary Cash Flow Elements (Details) - USD ($) | 12 Months Ended
--- | ---
Apr. 30, 2019 | Apr. 30, 2018 | Apr. 30, 2017
State and local income tax payments | $ 387,000 | $ 307,000 | $ 560,000
Federal income tax payments to the Parent | $ 2,700,000 | $ 3,975,000 | $ 6,824,000

X
- Definition Amount represents Federal income tax payments to the Parent. + References No definition available. + Details
Name: | valu_FederalIncomeTaxPaymentsToParent
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