XML 45 R28.htm IDEA: XBRL DOCUMENT
v3.5.0.2

Note 7 - Related Party Transactions (Tables) | 3 Months Ended
--- | ---
Jul. 31, 2016
Notes Tables |
Schedule of Non Voting Revenues Interest and Non Voting Profits Interests [Table Text Block] |
|  | Three Months Ended July 31, |
($ in thousands) |  | 2016 |  |  | 2015 |
Non-voting revenues interest in EAM |  | $ | 1,787 |  |  | $ | 1,902 |
Non-voting profits interest in EAM |  |  | 129 |  |  |  | 140 |
|  | $ | 1,916 |  |  | $ | 2,042 |

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

X
- Definition Schedule of non voting revenues interest and non voting profits interests. + References No definition available. + Details
Name: | valu_ScheduleOfNonVotingRevenuesInterestAndNonVotingProfitsInterestsTableTextBlock
Namespace Prefix: | valu_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration