Stock Options (Details 3)	12 Months Ended
Aug. 31, 2019 $ / shares shares
Number of Shares Subject to Outstanding Options \| shares	2,777,334
Weighted average contractural life (years)	8 years 3 months 29 days
Weighted-average exercise price \| $ / shares	$ 4.31
Number of Shares Subject to options exercisable \| shares	1,716,234
Weighted average contractural life (years) of options exercisable	9 years
Weighted-average exercise price of options exercisable \| $ / shares	$ 4.17
$3.28 Per Share [Member]
Number of Shares Subject to Outstanding Options \| shares	7,500
Weighted average contractural life (years)	7 years 2 months 16 days
Weighted-average exercise price \| $ / shares	$ 3.28
Number of Shares Subject to options exercisable \| shares	7,500
Weighted average contractural life (years) of options exercisable	7 years 2 months 16 days
Weighted-average exercise price of options exercisable \| $ / shares	$ 3.28
$3.46 Per Share [Member]
Number of Shares Subject to Outstanding Options \| shares	35,000
Weighted average contractural life (years)	6 years 4 months 6 days
Weighted-average exercise price \| $ / shares	$ 3.46
Number of Shares Subject to options exercisable \| shares	35,000
Weighted average contractural life (years) of options exercisable	6 years 4 months 6 days
Weighted-average exercise price of options exercisable \| $ / shares	$ 3.46
$3.54 Per Share [Member]
Number of Shares Subject to Outstanding Options \| shares	1,506,000
Weighted average contractural life (years)	8 years 6 months 10 days
Weighted-average exercise price \| $ / shares	$ 3.54
Number of Shares Subject to options exercisable \| shares	1,032,900
Weighted average contractural life (years) of options exercisable	9 years 9 months 3 days
Weighted-average exercise price of options exercisable \| $ / shares	$ 3.54
$4.87 Per Share [Member]
Number of Shares Subject to Outstanding Options \| shares	187,500
Weighted average contractural life (years)	8 years 2 months 23 days
Weighted-average exercise price \| $ / shares	$ 4.87
Number of Shares Subject to options exercisable \| shares	187,500
Weighted average contractural life (years) of options exercisable	8 years 2 months 23 days
Weighted-average exercise price of options exercisable \| $ / shares	$ 4.87
$5.35 Per Share [Member]
Number of Shares Subject to Outstanding Options \| shares	1,008,000
Weighted average contractural life (years)	8 years 4 months 6 days
Weighted-average exercise price \| $ / shares	$ 5.35
Number of Shares Subject to options exercisable \| shares	420,000
Weighted average contractural life (years) of options exercisable	8 years 4 months 6 days
Weighted-average exercise price of options exercisable \| $ / shares	$ 5.35
$5.94 Per Share [Member]
Number of Shares Subject to Outstanding Options \| shares	33,334
Weighted average contractural life (years)	1 year 3 months 26 days
Weighted-average exercise price \| $ / shares	$ 5.94
Number of Shares Subject to options exercisable \| shares	33,334
Weighted average contractural life (years) of options exercisable	1 year 3 months 26 days
Weighted-average exercise price of options exercisable \| $ / shares	$ 5.94

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

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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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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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 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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