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Cover - shares
 3 Months Ended
May 31, 2021
Jul. 09, 2021
Cover [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Quarterly Report true  
Document Transition Report false  
Document Period End Date May 31, 2021  
Document Fiscal Period Focus Q1  
Document Fiscal Year Focus 2022  
Current Fiscal Year End Date --02-28  
Entity File Number 000-16035  
Entity Registrant Name Sono Tek Corp  
Entity Central Index Key 0000806172  
Entity Tax Identification Number 14-1568099  
Entity Incorporation, State or Country Code NY  
Entity Address, Address Line One 2012 Rt. 9W  
Entity Address, City or Town Milton  
Entity Address, State or Province NY  
Entity Address, Postal Zip Code 12547  
City Area Code (845)  
Local Phone Number 795-2020  
Title of 12(b) Security None  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   15,506,699