7. SHAREHOLDERS EQUITY (Details - Option activity) - $ / shares	12 Months Ended
Aug. 31, 2018	Aug. 31, 2017	Aug. 31, 2016
Number of Options
Awards Outstanding, ending balance	1,134,976
Vested and Exercisable, end of period	483,696
Weighted-Average Exercise Price Per Share
Outstanding	$ 9.44
Vested and Exercisable, end of period	$ 7.79
Stock Option [Member]
Number of Options
Awards Outstanding, beginning balance	1,249,126	947,500	670,350
Granted	52,000	434,916	427,100
Exercised	(130,006)	(49,642)	(112,463)
Canceled/Forfeited	(30,144)	(83,648)	(27,487)
Expired	(6,000)		(10,000)
Awards Outstanding, ending balance	1,134,976	1,249,126	947,500
Vested and Exercisable, end of period	483,696	401,485	279,880
Vested and Expected to Vest, end of period	1,069,807	1,144,405	862,529
Weighted-Average Exercise Price Per Share
Outstanding	$ 8.51	$ 7.50	$ 5.05
Granted	22.36	10.18	9.67
Exercised	5.97	3.56	1.67
Canceled/Forfeited	9.10	8.68	7.66
Expired	5.06		1.13
Outstanding	9.44	8.51	7.50
Vested and Exercisable, end of period	7.79	6.45	4.96
Vested and Expected to Vest, end of period	$ 9.35	$ 8.41	$ 7.37
Weighted-Average Remaining Contractual Life
Outstanding, beginning of period	7 years 8 months 26 days	7 years 8 months 23 days	6 years 6 months 25 days
Outstanding, end of period	7 years 3 months 22 days	7 years 8 months 26 days	7 years 8 months 23 days
Vested and Exercisable	6 years 5 months 23 days	5 years 7 months 2 days	5 years 4 months 24 days
Vested and Expected to Vest	7 years 3 months 4 days	7 years 7 months 17 days	7 years 7 months 10 days

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Gross number of share options (or share units) granted during the period.

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Number of options outstanding, including both vested and non-vested options.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Number of fully vested and expected to vest exercisable options that may be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest exercisable or convertible options. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Weighted average remaining contractual term for fully vested and expected to vest exercisable or convertible options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Weighted average remaining contractual term of exercisable stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term of outstanding stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of share options (or share units) exercised during the current period.

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