XML 12 R1.htm IDEA: XBRL DOCUMENT v3.20.2
Document and Entity Information - shares
 3 Months Ended
Sep. 30, 2020
Nov. 02, 2020
Cover [Abstract]    
Entity Registrant Name LIGHTPATH TECHNOLOGIES INC  
Entity Central Index Key 0000889971  
Document Type 10-Q  
Document Period End Date Sep. 30, 2020  
Amendment Flag false  
Current Fiscal Year End Date --06-30  
Entity Interactive Data Current Yes  
Entity Incorporation, State or Country Code DE  
Entity File Number 000-27548  
Entity's Reporting Status Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Emerging Growth Company false  
Entity Small Business true  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   26,109,225
Document Fiscal Period Focus Q1  
Document Fiscal Year Focus 2021