Document and Entity Information	6 Months Ended
	Oct. 31, 2012
Document and Entity Information [Abstract]
Entity Registrant Name	VALUE LINE INC
Entity Central Index Key	0000717720
Trading Symbol	valu
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Current Fiscal Year End Date	--04-30
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding	9,892,941
Document Type	10-Q
Document Period End Date	Oct. 31, 2012
Amendment Flag	false
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q2