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Business Segments - Additional reportable segment information (Details 1) (Reportable business segments, USD $) In Thousands, unless otherwise specified | Apr. 30, 2011
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Segment Reporting Information [Line Items] |
Assets | $ 87,803
Expenditures for Segment Assets | 1,907
Publishing |
Segment Reporting Information [Line Items] |
Assets | 11,827
Expenditures for Segment Assets | 1,897
Investment Management |
Segment Reporting Information [Line Items] |
Assets |
Expenditures for Segment Assets | 10
Corporate assets |
Segment Reporting Information [Line Items] |
Assets | 75,976
Expenditures for Segment Assets |

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- Definition The net of assets and liabilities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 225 -Section S99 -Paragraph 3 -Subparagraph (SX 210.6-09.6,7) -URI http://asc.fasb.org/extlink&oid=6488393&loc=d3e606914-122999 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 210 -Section S99 -Paragraph 2 -Subparagraph (SX 210.6-05.4) -URI http://asc.fasb.org/extlink&oid=6488278&loc=d3e604008-122996 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 05 -Paragraph 4 -Article 6 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Paragraph 19 -Article 6 + Details
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Balance Type: | debit
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- Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
Period Type: | duration

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- Definition This element represents the amount of expenditure for segment assets. + References No definition available. + Details
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Namespace Prefix: | valu_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant