XML 13 R39.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Variable Interest Entity (Detail textuals) | 6 Months Ended
--- | ---
Oct. 31, 2012
Variable Interest Entity [Abstract] |
Non-voting profits interest in EAM | 50.00%

X
- Definition Percentage of equity (net assets) in a variable interest entity (VIE) not attributable, directly or indirectly, to the parent entity. That is, percentage of equity in a VIE that is attributable to the noncontrolling interest (previously referred to as minority interest). + References No definition available. + Details
Name: | valu_PercentageOfNoncontrollingInterestInVariableInterestEntity
Namespace Prefix: | valu_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | valu_VariableInterestEntityAbstract
Namespace Prefix: | valu_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration