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Document And Entity Information (USD $)	6 Months Ended
Document And Entity Information (USD $)	Jul. 31, 2011	Aug. 31, 2011	Jul. 31, 2010
Entity Information [Line Items]
Entity Registrant Name	QAD INC
Entity Central Index Key	0001036188
Current Fiscal Year End Date	--01-31
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Smaller Reporting Company
Entity Public Float			$ 51,900,000
Entity Common Stock, Shares Outstanding		16,172,879
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	Q2
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jul. 31, 2011
Common Class A [Member]
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		12,970,640
Common Class B [Member]
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		3,202,239