Document and Entity Information	3 Months Ended
	Nov. 30, 2012	Jan. 11, 2013
Document And Entity Information
Entity Registrant Name	SIMULATIONS PLUS INC
Entity Central Index Key	0001023459
Document Type	10-Q
Document Period End Date	Nov. 30, 2012
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		16,021,309
Document Fiscal Period Focus	Q1
Document Fiscal Year Focus	2013