7. SHAREHOLDERS EQUITY (Details - Option activity) - $ / shares	12 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Number of Options
Awards Outstanding, ending balance	1,249,126
Vested and Exercisable, end of period	401,485
Weighted-Average Exercise Price Per Share
Outstanding	$ 8.51
Vested and Exercisable, end of period	$ 6.45
Incentive Stock Options (ISOs) [Member]
Number of Options
Awards Outstanding, beginning balance	894,750	621,000	798,500
Granted	409,582	412,100	37,000
Exercised	(40,142)	(100,863)	(95,384)
Canceled/Forfeited	(70,148)	(27,487)	(119,116)
Expired		(10,000)	0
Awards Outstanding, ending balance	1,194,042	894,750	621,000
Vested and Exercisable, end of period	380,360	253,380	265,700
Vested and Expected to Vest, end of period	1,091,981	812,458	576,952
Weighted-Average Exercise Price Per Share
Outstanding	$ 7.54	$ 5.01	$ 4.59
Granted	10.1	9.71	6.99
Exercised	3.01	1.45	2.49
Canceled/Forfeited	8.92	7.66	4.86
Expired		1.13
Outstanding	8.49	7.54	5.01
Vested and Exercisable, end of period	6.45	4.85	2.81
Vested and Expected to Vest, end of period	$ 8.38	$ 7.40	$ 4.87
Weighted-Average Remaining Contractual Life
Outstanding, beginning of period	7 years 8 months 19 days	6 years 4 days	6 years 3 months 7 days
Outstanding, end of period	7 years 8 months 12 days	7 years 8 months 19 days	6 years 4 days
Vested and Exercisable	5 years 5 months 27 days	5 years 3 months 4 days	4 years 4 months 24 days
Vested and Expected to Vest	7 years 7 months 2 days	7 years 6 months 29 days	6 years 3 months 26 days
Non-Qualified Stock Options (NQSOs) [Member]
Number of Options
Awards Outstanding, beginning balance	52,750	49,350	56,600
Granted	25,334	15,000	13,750
Exercised	(9,500)	(11,600)	(6,503)
Canceled/Forfeited	(13,500)	0	(14,497)
Awards Outstanding, ending balance	55,084	52,750	49,350
Vested and Exercisable, end of period	21,125	26,500	27,200
Weighted-Average Exercise Price Per Share
Outstanding	$ 6.88	$ 5.52	$ 4.82
Granted	11.44	8.62	6.75
Exercised	5.88	3.33	3.28
Canceled/Forfeited	7.43		4.97
Outstanding	9.02	6.88	5.52
Vested and Exercisable, end of period	$ 6.51	$ 5.95	$ 4.70
Weighted-Average Remaining Contractual Life
Outstanding, beginning of period	8 years 26 days	7 years 9 months	7 years 11 months 15 days
Outstanding, end of period	8 years 7 months 2 days	8 years 26 days	7 years 9 months
Vested and Exercisable	7 years 3 months 15 days	6 years 8 months 12 days	6 years 3 months 22 days