Document and Entity Information - shares	6 Months Ended
	Jul. 01, 2017	Jul. 21, 2017
Document And Entity Information [Abstract]
Entity Registrant Name	IRIDEX CORP
Entity Central Index Key	0001006045
Document Type	10-Q
Document Period End Date	Jul. 01, 2017
Amendment Flag	false
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	Q2
Current Fiscal Year End Date	--12-30
Trading Symbol	IRIX
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		11,567,662