Document and Entity Information - shares	3 Months Ended
	Sep. 30, 2019	Oct. 31, 2019
Document And Entity Information
Entity Registrant Name	PRECISION OPTICS CORPORATION, INC.
Entity Central Index Key	0000867840
Document Type	10-Q
Document Period End Date	Sep. 30, 2019
Amendment Flag	false
Current Fiscal Year End Date	--06-30
Is Entity's Reporting Status Current?	Yes
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		12,868,639
Document Fiscal Period Focus	Q1
Document Fiscal Year Focus	2020
Entity Small Business	true
Entity Emerging Growth	false
Entity Interactive data current	Yes
Entity File number	001-10647
Entity Incorporation state code	MA