2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details - Earnings per share) - USD ($)	3 Months Ended								12 Months Ended
	Aug. 31, 2019	May 31, 2019	Feb. 28, 2019	Nov. 30, 2018	Aug. 31, 2018	May 31, 2018	Feb. 28, 2018	Nov. 30, 2017	Aug. 31, 2019	Aug. 31, 2018	Aug. 31, 2017
Numerator
Net income attributable to common shareholders	$ 2,059,000	$ 2,889,000	$ 2,099,000	$ 1,536,000	$ 1,338,000	$ 2,406,000	$ 3,475,000	$ 1,716,000	$ 8,583,329	$ 8,934,812	$ 5,787,597
Denominator
Weighted-average number of common shares outstanding during the period									17,492,258	17,328,707	17,239,490
Dilutive effect of stock options									565,173	531,685	276,427
Common stock and common stock equivalents used for diluted earnings per share									18,057,431	17,860,392	17,515,917