SEGMENT AND GEOGRAPHIC REPORTING (Details - Segment reporting) - USD ($) $ in Thousands	3 Months Ended
	Nov. 30, 2020	Nov. 30, 2019	Aug. 31, 2020
Segment Reporting Information [Line Items]
Net Revenues	$ 10,701	$ 9,401
Income (loss) from operations before income taxes	3,051	2,718
Total assets	170,470		$ 168,422
Consolidation, Eliminations [Member]
Segment Reporting Information [Line Items]
Total assets	(39,488)	(17,702)
Capitalized software costs	0	0
Simulations Plus, Inc. [Member]
Segment Reporting Information [Line Items]
Net Revenues	5,432	4,927
Income (loss) from operations before income taxes	2,365	1,903
Total assets	162,871	40,656
Capital expenditures	139	8
Capitalized software costs	568	457
Depreciation and Amortization	451	435
Cognigen [Member]
Segment Reporting Information [Line Items]
Net Revenues	2,668	2,387
Income (loss) from operations before income taxes	206	40
Total assets	12,279	10,660
Capital expenditures	63	17
Capitalized software costs	0	20
Depreciation and Amortization	81	86
DILIsym [Member]
Segment Reporting Information [Line Items]
Net Revenues	1,372	2,087
Income (loss) from operations before income taxes	(45)	775
Total assets	14,180	14,149
Capital expenditures	0	3
Capitalized software costs	43	30
Depreciation and Amortization	149	150
Lixoft [Member]
Segment Reporting Information [Line Items]
Net Revenues	1,229
Income (loss) from operations before income taxes	525
Total assets	20,628
Capital expenditures	3
Capitalized software costs	117
Depreciation and Amortization	184
Consolidation, Eliminations [Member]
Segment Reporting Information [Line Items]
Net Revenues	0	0
Income (loss) from operations before income taxes	0	0
Capital expenditures	0	0
Depreciation and Amortization	0	0
Operating Segments [Member]
Segment Reporting Information [Line Items]
Net Revenues	10,701	9,401
Income (loss) from operations before income taxes	3,051	2,718
Total assets	170,470	47,763
Capital expenditures	205	28
Capitalized software costs	728	507
Depreciation and Amortization	$ 865	$ 671