Document and Entity Information - shares	6 Months Ended
	Dec. 31, 2017	Feb. 01, 2018
Document and Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Dec. 31, 2017
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q2
Trading Symbol	LFVN
Entity Registrant Name	Lifevantage Corp
Entity Central Index Key	0000849146
Current Fiscal Year End Date	--06-30
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		14,209,628