XML 15 R1.htm IDEA: XBRL DOCUMENT v3.19.1
Document and Entity Information - USD ($)
 12 Months Ended
Jan. 31, 2019
Apr. 05, 2019
Jul. 27, 2018
Document And Entity Information [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Jan. 31, 2019    
Document Fiscal Year Focus 2019    
Document Fiscal Period Focus FY    
Trading Symbol ALOT    
Entity Registrant Name AstroNova, Inc.    
Entity Central Index Key 0000008146    
Current Fiscal Year End Date --01-31    
Entity Well-known Seasoned Issuer No    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Filer Category Accelerated Filer    
Entity Shell Company false    
Entity Small Business true    
Entity Emerging Growth Company false    
Entity Common Stock, Shares Outstanding   6,987,823  
Entity Public Float     $ 112,325,000