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Document and Entity Information
3 Months Ended
Aug. 31, 2011
Sep. 30, 2011
Document And Entity Information  
Entity Registrant NameSONO TEK CORP 
Entity Central Index Key0000806172 
Document Type10-Q 
Document Period End DateAug. 31, 2011
Amendment Flagfalse 
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 CategorySmaller Reporting Company 
Entity Common Stock, Shares Outstanding 14,442,211
Document Fiscal Period FocusQ2 
Document Fiscal Year Focus2011