Document and Entity Information - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2018	Aug. 10, 2018	Dec. 31, 2017
Document and Entity Information [Abstract]
Entity Registrant Name	Lifevantage Corp
Entity Central Index Key	0000849146
Document Type	10-K
Document Period End Date	Jun. 30, 2018
Amendment Flag	false
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	FY
Current Fiscal Year End Date	--06-30
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Entity Public Float			$ 67.6
Entity Common Stock, Shares Outstanding		14,088,430