Document and Entity Information - USD ($)
 12 Months Ended
Jun. 30, 2018
Aug. 29, 2018
Dec. 31, 2017
Document And Entity Information      
Entity Registrant Name MISONIX INC    
Entity Central Index Key 0000880432    
Document Type 10-K    
Trading Symbol MSON    
Document Period End Date Jun. 30, 2018    
Amendment Flag false    
Current Fiscal Year End Date --06-30    
Entity a Well-known Seasoned Issuer No    
Entity a Voluntary Filer No    
Entity's Reporting Status Current Yes    
Entity Filer Category Accelerated Filer    
Entity Public Float     $ 71,441,583
Entity Common Stock, Shares Outstanding   9,442,095  
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2018