Document And Entity Information - USD ($) $ in Millions	12 Months Ended
	Jan. 31, 2020	Mar. 31, 2020	Jul. 31, 2019
Document Information [Line Items]
Entity Registrant Name	QAD INC
Entity Central Index Key	0001036188
Trading Symbol	qada
Current Fiscal Year End Date	--01-31
Entity Filer Category	Accelerated Filer
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Interactive Data Current	Yes
Entity Public Float			$ 449
Entity Shell Company	false
Document Type	10-K
Document Period End Date	Jan. 31, 2020
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Amendment Flag	false
Title of 12(b) Security	Common Stock
Common Class A [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding (in shares)		17,112,899
Common Class B [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding (in shares)		3,321,002