XML 16 R1.htm IDEA: XBRL DOCUMENT v3.5.0.2
Document and Entity Information - USD ($)
 12 Months Ended
Jun. 30, 2016
Sep. 12, 2016
Dec. 31, 2015
Document And Entity Information      
Entity Registrant Name LIGHTPATH TECHNOLOGIES INC    
Entity Central Index Key 0000889971    
Document Type 10-K    
Trading Symbol LPTH    
Document Period End Date Jun. 30, 2016    
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 Smaller Reporting Company    
Entity Common Stock, Shares Outstanding   15,633,258  
Entity Public Float     $ 28,634,076
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2016