Document And Entity Information - shares	9 Months Ended
	Apr. 30, 2016	Jun. 10, 2016
Document And Entity Information [Abstract]
Entity Registrant Name	NON INVASIVE MONITORING SYSTEMS INC /FL/
Entity Central Index Key	0000720762
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Apr. 30, 2016
Current Fiscal Year End Date	--07-31
Entity Filer Category	Smaller Reporting Company
Entity Common Stock, Shares Outstanding		79,007,423
Trading Symbol	NIMU
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2016