XML 69 R52.htm IDEA: XBRL DOCUMENT v3.21.2

Note 5 - Variable Interest Entity (Details Textual)	3 Months Ended	12 Months Ended
	Jul. 31, 2020	Apr. 30, 2021
EAM Trust [Member]
Non Voting Profits Interest Percent	50.00%	50.00%

X

- Definition

Represents percentage of non-voting profits interest.

+ References

No definition available.

+ Details

Name:	valu_NonVotingProfitsInterestPercent
Namespace Prefix:	valu_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=valu_EulavAssetManagementLlcMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: