8. INCOME TAXES (Details - Reconciliation)	12 Months Ended
	Aug. 31, 2019	Aug. 31, 2018	Aug. 31, 2017
Income Tax Disclosure [Abstract]
Income tax computed at federal statutory tax rate	21.00%	25.40%	34.00%
State taxes, net of federal benefit	4.10%	4.00%	3.50%
Meals & entertainment	0.10%	0.00%	0.00%
Stock based compensation	(2.60%)	0.50%	0.00%
Other permanent differences	(0.70%)	1.20%	(0.50%)
Research and development credit	(2.30%)	(2.60%)	(3.60%)
Domestic production activities	(0.00%)	(1.80%)	(2.30%)
Change in deferred income taxes due to statutory rate changes	0.00%	(14.80%)	0.00%
Change in prior year estimated taxes	(0.90%)	0.00%	(1.30%)
Total	18.70%	11.90%	29.80%