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Related Party Transactions - Income from non-voting revenues interest and non-voting profits interests in EAM (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
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Jan. 31, 2014 | Jan. 31, 2013 | Jan. 31, 2014 | Jan. 31, 2013
Related Party Transactions [Abstract] |  |  |  |
Non-voting revenues interest in EAM | $ 1,767 | $ 1,472 | $ 5,028 | $ 4,280
Non-voting profits interest in EAM | 207 | 153 | 569 | 347
Revenues and profits interests in EAM Trust | $ 1,974 | $ 1,625 | $ 5,597 | $ 4,627

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- Details
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- Definition Represents the income received against non voting profits in unconsolidated entity. + References No definition available. + Details
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- Definition Represents the income received against non voting revenues in unconsolidated entity. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
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- Definition Represents the revenues and profits distribution from unconsolidated entity. + References No definition available. + Details
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Namespace Prefix: | valu_
Data Type: | xbrli:monetaryItemType
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