Document and Entity Information - shares	3 Months Ended
	Sep. 30, 2020	Oct. 30, 2020
Document And Entity Information
Entity Registrant Name	INTERDYNE CO
Entity Central Index Key	0000051011
Current Fiscal Year End Date	--06-30
Entity Filer Category	Non-accelerated Filer
Document Type	10-Q
Document Period End Date	Sep. 30, 2020
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q1
Entity Interactive Data Current	Yes
Entity Incorporation State Country Code	CA
Entity File Number	0-4454
Entity Common Stock, Shares Outstanding		39,999,942
Entity's Reporting Status Current	Yes
Amendment Flag	false
Entity Small Business	true
Entitye Emerging Growth Company	true
Entity Extended Transition Period	true
Entity Shell Company?	true