SEGMENT AND GEOGRAPHIC REPORTING (Details - Segment reporting) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Feb. 28, 2021	Feb. 29, 2020	Feb. 28, 2021	Feb. 29, 2020	Aug. 31, 2020
Segment Reporting Information [Line Items]
Net Revenues	$ 13,147	$ 10,350	$ 23,848	$ 19,751
Income (loss) from operations before income taxes	3,486	2,826	6,537	5,545
Total assets	175,769		175,769		$ 168,422
Parent Company [Member]
Segment Reporting Information [Line Items]
Net Revenues	13,147	10,350	23,848	19,751
Income (loss) from operations before income taxes	3,486	2,826	6,537	5,545
Total assets	175,769	49,199	175,769	49,199
Capital expenditures	378	42	583	73
Capitalized software costs	746	620	1,474	1,127
Depreciation and Amortization	911	675	1,776	1,345
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Net Revenues
Income (loss) from operations before income taxes
Total assets	(39,317)	(17,702)	(39,317)	(17,702)
Capital expenditures
Capitalized software costs
Depreciation and Amortization
Simulations Plus, Inc. [Member]
Segment Reporting Information [Line Items]
Net Revenues	6,646	5,904	12,078	10,830
Income (loss) from operations before income taxes	2,121	2,004	4,486	3,907
Total assets	165,712	42,881	165,712	42,881
Capital expenditures	232	9	371	17
Capitalized software costs	588	573	1,156	1,030
Depreciation and Amortization	485	435	936	870
Cognigen [Member]
Segment Reporting Information [Line Items]
Net Revenues	2,783	2,750	5,451	5,137
Income (loss) from operations before income taxes	279	276	485	316
Total assets	12,712	10,465	12,712	10,465
Capital expenditures	126	20	189	41
Capitalized software costs	5	16	5	36
Depreciation and Amortization	84	89	165	175
DILIsym [Member]
Segment Reporting Information [Line Items]
Net Revenues	2,114	1,696	3,486	3,784
Income (loss) from operations before income taxes	260	546	215	1,322
Total assets	15,242	13,555	15,242	13,555
Capital expenditures	5	13	5	15
Capitalized software costs	35	31	78	61
Depreciation and Amortization	149	$ 151	298	$ 300
Lixoft [Member]
Segment Reporting Information [Line Items]
Net Revenues	1,604		2,833
Income (loss) from operations before income taxes	826		1,351
Total assets	21,420		21,420
Capital expenditures	15		18
Capitalized software costs	118		235
Depreciation and Amortization	$ 193		$ 377