Document And Entity Information - shares	9 Months Ended
	Jun. 30, 2015	Jul. 20, 2015
Document Information [Line Items]
Entity Registrant Name	RMR Industrials, Inc.
Entity Central Index Key	0001556179
Current Fiscal Year End Date	--09-30
Entity Filer Category	Smaller Reporting Company
Trading Symbol	RMRI
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2015
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2015
Common Class A [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		16,144,142
Common Class B [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		35,785,858