SEGMENT AND GEOGRAPHIC REPORTING (Details - Segment reporting) - USD ($)	3 Months Ended								12 Months Ended
	Aug. 31, 2020	May 31, 2020	Feb. 29, 2020	Nov. 30, 2019	Aug. 31, 2019	May 31, 2019	Feb. 28, 2019	Nov. 30, 2018	Aug. 31, 2020	Aug. 31, 2019	Aug. 31, 2018	Aug. 31, 2017
Segment Reporting Information [Line Items]
Net Revenues	$ 9,540,000	$ 12,298,000	$ 10,350,000	$ 9,401,000	$ 8,026,000	$ 9,937,000	$ 8,472,000	$ 7,536,000	$ 41,589,084	$ 33,970,440	$ 29,666,524
Income (loss) from operations before income taxes									11,605,178	10,648,729	10,297,788
Total assets	168,421,517				45,196,697				168,421,517	45,196,697
Goodwill	12,921,185				10,387,198				12,921,185	10,387,198	10,387,198	$ 10,387,198
Consolidation, Eliminations [Member]
Segment Reporting Information [Line Items]
Total assets	(40,095,000)				(17,702,000)				(40,095,000)	(17,702,000)	(17,702,000)
Simulations Plus, Inc. [Member]
Segment Reporting Information [Line Items]
Net Revenues									21,961,000	19,585,000	17,553,000
Income (loss) from operations before income taxes									7,374,000	7,752,000	7,533,000
Total assets	162,807,000				38,535,000				162,807,000	38,535,000	38,000,000
Goodwill	0				0				0	0	0
Capital expenditures									111,000	39,000	65,000
Capitalized software costs	2,028,000				1,482,000				2,028,000	1,482,000	1,365,000
Depreciation and Amortization									1,713,000	1,806,000	1,748,000
Cognigen [Member]
Segment Reporting Information [Line Items]
Net Revenues									11,105,000	9,321,000	7,857,000
Income (loss) from operations before income taxes									1,770,000	1,481,000	1,902,000
Total assets	11,654,000				11,196,000				11,654,000	11,196,000	8,733,000
Goodwill	4,789,000				4,789,000				4,789,000	4,789,000	4,789,000
Capital expenditures									87,000	79,000	100,000
Capitalized software costs	40,000				114,000				40,000	114,000	625,000
Depreciation and Amortization									349,000	364,000	401,000
D I L Isym [Member]
Segment Reporting Information [Line Items]
Net Revenues									6,948,000	5,065,000	4,257,000
Income (loss) from operations before income taxes									1,744,000	1,416,000	863,000
Total assets	14,084,000				13,168,000				14,084,000	13,168,000	14,248,000
Goodwill	5,598,000				5,598,000				5,598,000	5,598,000	5,598,000
Capital expenditures									31,000	20,000	18,000
Capitalized software costs	124,000				172,000				124,000	172,000	155,000
Depreciation and Amortization									600,000	580,000	572,000
Lixoft [Member]
Segment Reporting Information [Line Items]
Net Revenues									1,575,000	0	0
Income (loss) from operations before income taxes									717,000
Total assets	19,972,000								19,972,000
Goodwill	2,534,000								2,534,000
Capital expenditures									2,000
Capitalized software costs	160,000								160,000
Depreciation and Amortization									300,000
Operating Segments [Member]
Segment Reporting Information [Line Items]
Net Revenues									41,589,000	33,970,000	29,667,000
Income (loss) from operations before income taxes									11,605,000	10,648,000	10,298,000
Total assets	168,422,000				45,197,000				168,422,000	45,197,000	43,279,000
Goodwill	12,921,000				10,387,000				12,921,000	10,387,000	10,387,000
Capital expenditures									231,000	138,000	183,000
Capitalized software costs	$ 2,353,000				$ 1,768,000				2,353,000	1,768,000	2,145,000
Depreciation and Amortization									$ 2,962,000	$ 2,750,000	$ 2,721,000