Document and Entity Information - USD ($)	12 Months Ended
	Feb. 28, 2021	May 18, 2021	Aug. 31, 2020
Document And Entity Information
Entity Registrant Name	SONO TEK CORP
Entity Central Index Key	0000806172
Document Type	10-K
Document Period End Date	Feb. 28, 2021
Amendment Flag	false
Current Fiscal Year End Date	--02-28
Is Entity a Well-known Seasoned Issuer?	No
Is Entity a Voluntary Filer?	No
Is Entity's Reporting Status Current?	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 55,312,174
Entity Common Stock, Shares Outstanding		15,502,558
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2021
Interactive Data Current	Yes
State of Incorporation	NY
File Number	000-16035