14. UNAUDTED QUARTERLY FINANCIAL DATA (Details) - USD ($)	3 Months Ended								12 Months Ended
	Aug. 31, 2018	May 31, 2018	Feb. 28, 2018	Nov. 30, 2017	Aug. 31, 2017	May 31, 2017	Feb. 28, 2017	Nov. 30, 2016	Aug. 31, 2018	Aug. 31, 2017	Aug. 31, 2016
Quarterly Financial Information Disclosure [Abstract]
Revenues	$ 6,688,000	$ 8,553,000	$ 7,357,000	$ 7,069,000	$ 6,266,000	$ 6,749,000	$ 5,705,000	$ 5,418,000	$ 29,666,524	$ 24,137,913	$ 19,972,079
Gross Profit	4,568,000	6,530,000	5,241,000	5,333,000	4,293,000	5,304,000	4,151,000	4,082,000	21,672,296	17,830,113	15,370,566
Net Income	$ 1,338,000	$ 2,406,000	$ 3,475,000	$ 1,716,000	$ 1,151,000	$ 2,080,000	$ 1,196,000	$ 1,362,000	$ 8,934,812	$ 5,787,597	$ 4,950,136
Earnings per share, Basic	$ 0.08	$ 0.14	$ 0.2	$ 0.1	$ 0.07	$ 0.12	$ 0.07	$ 0.08	$ 0.52	$ 0.34	$ 0.29
Earnings per share, Diluted	$ 0.07	$ 0.13	$ 0.19	$ 0.1	$ 0.06	$ 0.12	$ 0.07	$ 0.08	$ 0.50	$ 0.33	$ 0.29