Document and Entity Information - shares	9 Months Ended
	May. 31, 2015	Jul. 14, 2015
Document And Entity Information
Entity Registrant Name	SIMULATIONS PLUS INC
Entity Central Index Key	0001023459
Document Type	10-Q
Document Period End Date	May 31, 2015
Amendment Flag	false
Current Fiscal Year End Date	--08-31
Is Entity a Well-known Seasoned Issuer?	No
Is Entity a Voluntary Filer?	No
Is Entity's Reporting Status Current?	Yes
Entity Filer Category	Smaller Reporting Company
Entity Common Stock, Shares Outstanding		16,892,117
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2015