XML 15 R1.htm IDEA: XBRL DOCUMENT v3.23.1
Cover Page - shares
 3 Months Ended
Mar. 31, 2023
Apr. 28, 2023
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Mar. 31, 2023  
Document Transition Report false  
Entity File Number 000-24389  
Entity Registrant Name OneSpan Inc.  
Entity Tax Identification Number 36-4169320  
Entity Address, Address Line One 121 West Wacker Drive, Suite 2050  
Entity Address, City or Town Chicago  
Entity Address, State or Province IL  
Entity Address, Postal Zip Code 60601  
City Area Code 312  
Local Phone Number 766-4001  
Title of 12(b) Security Common Stock, par value $0.001 per share  
Trading Symbol OSPN  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Accelerated Filer  
Entity Emerging Growth Company false  
Entity Small Business false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   39,949,527
Entity Central Index Key 0001044777  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2023  
Document Fiscal Period Focus Q1  
Amendment Flag false  
Entity Incorporation, State or Country Code DE