14. UNAUDTED QUARTERLY FINANCIAL DATA (Details) - USD ($)	3 Months Ended								12 Months Ended
	Aug. 31, 2017	May 31, 2017	Feb. 28, 2017	Nov. 30, 2016	Aug. 31, 2016	May 31, 2016	Feb. 29, 2016	Nov. 30, 2015	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Quarterly Financial Information Disclosure [Abstract]
Revenues	$ 6,266,000	$ 6,749,000	$ 5,705,000	$ 5,418,000	$ 3,958,000	$ 6,012,000	$ 5,164,000	$ 4,839,000	$ 24,137,913	$ 19,972,079	$ 18,314,248
Gross Profit	4,293,000	5,304,000	4,151,000	4,082,000	2,898,000	4,817,000	3,900,000	3,755,000	17,830,113	15,370,566	13,921,771
Net Income	$ 1,151,000	$ 2,080,000	$ 1,196,000	$ 1,362,000	$ 789,000	$ 1,909,000	$ 1,145,000	$ 1,106,000	$ 5,787,597	$ 4,950,136	$ 3,842,961
Earnings per share, Basic	$ .07	$ .12	$ .07	$ .08	$ .07	$ .11	$ .07	$ .07	$ 0.34	$ 0.29	$ 0.23
Earnings per share, Diluted	$ .06	$ .12	$ .07	$ .08	$ .06	$ .11	$ .07	$ .06	$ 0.33	$ 0.29	$ 0.23