7. SHAREHOLDERS EQUITY (Details - Options outstanding and exercisable) - Stock Options [Member] - $ / shares	9 Months Ended
May 31, 2020	Aug. 31, 2019
Awards outstanding	1,231,491	1,163,259
Awards outstanding weighted average remaining contractual life	6 years 10 months 25 days
Awards outstanding weighted average exercise price	$ 15.95	$ 12.63
Awards exercisable	625,966
Awards exercisable weighted average remaining contractual life	5 years 9 months 11 days
Awards exercisable weighted average exercise price	$ 10.05
$6.75 to $8.00 [Member]
Exercise price low	6.75
Exercise price high	$ 8.00
Awards outstanding	180,970
Awards outstanding weighted average remaining contractual life	4 years 3 months 8 days
Awards outstanding weighted average exercise price	$ 6.85
Awards exercisable	180,970
Awards exercisable weighted average remaining contractual life	4 years 3 months 8 days
Awards exercisable weighted average exercise price	$ 6.85
$8.01 to $16.00 [Member]
Exercise price low	8.01
Exercise price high	$ 16.00
Awards outstanding	588,401
Awards outstanding weighted average remaining contractual life	6 years 3 months 15 days
Awards outstanding weighted average exercise price	$ 9.97
Awards exercisable	387,846
Awards exercisable weighted average remaining contractual life	6 years 2 months 16 days
Awards exercisable weighted average exercise price	$ 9.93
$16.01 to $24.00 [Member]
Exercise price low	16.01
Exercise price high	$ 24.00
Awards outstanding	236,870
Awards outstanding weighted average remaining contractual life	8 years 11 days
Awards outstanding weighted average exercise price	$ 20.69
Awards exercisable	57,150
Awards exercisable weighted average remaining contractual life	7 years 7 months 6 days
Awards exercisable weighted average exercise price	$ 21.06
$24.01 to $38.81 [Member]
Exercise price low	24.01
Exercise price high	$ 38.81
Awards outstanding	225,250
Awards outstanding weighted average remaining contractual life	9 years 5 months 5 days
Awards outstanding weighted average exercise price	$ 33.92
Awards exercisable	0
Awards exercisable weighted average exercise price	$ 0.00

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

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

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The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, 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 for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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