XML 33 R21.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Note 13 - Copyright Data Fees | 6 Months Ended
--- | ---
Oct. 31, 2018
Notes to Financial Statements |
Copyright Data Fees [Text Block] | Note 13 - Copyright Data Fees: During the six months ended October 31, 2018, copyright data fees of $3,468,000 were 14.2% above fiscal 2018. At October 31, 2018, total third party sponsored assets were $4.5 billion, as compared to $4.2 billion in assets at October 31, 2017.

X
- References No definition available. + Details
Name: | us-gaap_DisclosureTextBlockAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the information about copyright data fees. + References No definition available. + Details
Name: | valu_CopyrightDataFeesTextBlock
Namespace Prefix: | valu_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration