SEGMENT AND GEOGRAPHIC REPORTING (Details - geographic) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Feb. 28, 2021	Feb. 29, 2020	Feb. 28, 2021	Feb. 29, 2020
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 13,147	$ 10,350	$ 23,848	$ 19,751
Simulations Plus, Inc. [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	6,646	5,904	12,078	10,830
Cognigen [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	2,783	2,750	5,451	5,137
DILIsym [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	2,114	1,696	3,486	3,784
Lixoft [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	1,604		2,833
Americas [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	8,662	6,826	15,785	13,497
Americas [Member] | Simulations Plus, Inc. [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	2,884	2,607	5,403	5,153
Americas [Member] | Cognigen [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	2,783	2,750	5,451	5,137
Americas [Member] | DILIsym [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	2,067	1,469	3,393	3,207
Americas [Member] | Lixoft [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	928		1,538
EMEA [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	3,071	1,736	5,560	3,208
EMEA [Member] | Simulations Plus, Inc. [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	2,350	1,610	4,239	2,757
EMEA [Member] | Cognigen [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	0	0	0	0
EMEA [Member] | DILIsym [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	45	126	66	451
EMEA [Member] | Lixoft [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	676		1,255
Asia Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	1,414	1,788	2,503	3,046
Asia Pacific [Member] | Simulations Plus, Inc. [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	1,412	1,687	2,436	2,920
Asia Pacific [Member] | Cognigen [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	0	0	0	0
Asia Pacific [Member] | DILIsym [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	2	$ 101	27	$ 126
Asia Pacific [Member] | Lixoft [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 0		$ 40