Document and Entity Information - shares	6 Months Ended
	Jul. 28, 2018	Aug. 30, 2018
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jul. 28, 2018
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q2
Trading Symbol	ALOT
Entity Registrant Name	AstroNova, Inc.
Entity Central Index Key	0000008146
Current Fiscal Year End Date	--01-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		6,923,883