Document And Entity Information - shares	3 Months Ended
	Apr. 30, 2019	May 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 Emerging Growth Company	false
Entity Small Business	false
Document Type	10-Q
Document Period End Date	Apr. 30, 2019
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q1
Amendment Flag	false
Common Class A [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding (in shares)		16,374,484
Common Class B [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding (in shares)		3,263,906