Supplementary Cash Flow Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Jul. 31, 2014	Jul. 31, 2013
Supplemental Cash Flow Elements [Abstract]
State and local income tax payments	$ 86
Federal income tax payments to the Parent

Amount represents Federal income tax payments to the Parent.

No definition available.

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