7. SHAREHOLDERS EQUITY (Details - Options outstanding and exercisable) - $ / shares	6 Months Ended
Feb. 28, 2019	Aug. 31, 2018
Options [Member]
Awards outstanding	1,219,366	1,134,876
Awards outstanding weighted average remaining contractual life	7 years 4 months 17 days
Awards outstanding weighted average exercise price	$ 11.29	$ 9.44
Awards exercisable	554,766
Awards exercisable weighted average remaining contractual life	6 years 7 months 10 days
Awards exercisable weighted average exercise price	$ 8.62
$1.00 to $4.00 [Member]
Exercise price low	1.00
Exercise price high	$ 4.00
Awards outstanding	10,000
Awards outstanding weighted average remaining contractual life	1 month 6 days
Awards outstanding weighted average exercise price	$ 1.00
Awards exercisable	10,000
Awards exercisable weighted average remaining contractual life	1 month 6 days
Awards exercisable weighted average exercise price	$ 1.00
$4.01 to $8.00 [Member]
Exercise price low	4.01
Exercise price high	$ 8.00
Awards outstanding	261,570
Awards outstanding weighted average remaining contractual life	5 years 6 months 7 days
Awards outstanding weighted average exercise price	$ 6.85
Awards exercisable	201,080
Awards exercisable weighted average remaining contractual life	5 years 6 months 7 days
Awards exercisable weighted average exercise price	$ 6.85
$8.01 to $12.00 [Member]
Exercise price low	8.01
Exercise price high	$ 12.00
Awards outstanding	696,180
Awards outstanding weighted average remaining contractual life	7 years 6 months 7 days
Awards outstanding weighted average exercise price	$ 9.87
Awards exercisable	339,520
Awards exercisable weighted average remaining contractual life	7 years 5 months 1 day
Awards exercisable weighted average exercise price	$ 9.83
$12.01 to $16.00 [Member]
Exercise price low	12.01
Exercise price high	$ 16.00
Awards outstanding	12,916
Awards outstanding weighted average remaining contractual life	8 years 5 months 20 days
Awards outstanding weighted average exercise price	$ 14.44
Awards exercisable	4,166
Awards exercisable weighted average remaining contractual life	8 years 5 months 23 days
Awards exercisable weighted average exercise price	$ 14.46
$16.01 to $20.00 [Member]
Exercise price low	16.01
Exercise price high	$ 20.00
Awards outstanding	181,200
Awards outstanding weighted average remaining contractual life	9 years 6 months 14 days
Awards outstanding weighted average exercise price	$ 19.73
Awards exercisable	0
Awards exercisable weighted average exercise price
$20.01 to $23.75 [Member]
Exercise price low	20.01
Exercise price high	$ 23.75
Awards outstanding	57,500
Awards outstanding weighted average remaining contractual life	8 years 5 months 5 days
Awards outstanding weighted average exercise price	$ 23.21
Awards exercisable	0
Awards exercisable weighted average exercise price

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.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iii)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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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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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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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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