Document and Entity Information (USD $)	12 Months Ended
	Mar. 31, 2014	Aug. 27, 2014	Sep. 30, 2013
Document and Entity Information
Entity Registrant Name	ITERIS, INC.
Entity Central Index Key	0000350868
Document Type	10-K
Document Period End Date	Mar. 31, 2014
Amendment Flag	false
Current Fiscal Year End Date	--03-31
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Smaller Reporting Company
Entity Public Float			$ 37,353,000
Entity Common Stock, Shares Outstanding		32,682,296
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY