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Document and Entity Information - shares	3 Months Ended
	Sep. 30, 2018	Nov. 05, 2018
Document And Entity Information
Entity Registrant Name	LIGHTPATH TECHNOLOGIES INC
Entity Central Index Key	0000889971
Document Type	10-Q
Trading Symbol	LPTH
Document Period End Date	Sep. 30, 2018
Amendment Flag	false
Current Fiscal Year End Date	--06-30
Entity's Reporting Status Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	true
Entity Common Stock, Shares Outstanding		25,784,475
Document Fiscal Period Focus	Q1
Document Fiscal Year Focus	2019

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-Subsection b-2

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