CAPITAL STOCK (Details 5) - Employee Stock Option [Member] - $ / shares	12 Months Ended
Jul. 31, 2018	Jul. 31, 2017	Jul. 31, 2016
Schedule of Share Based Compensation Arrangement by Share based Payment Award Options Grants in Period Activity [Line Items]
Expected Risk Free Interest Rate	2.24%	1.28%	0.84%
Expected Volatility	67.60%	82.40%	80.46%
Expected Life in Years	3 years 1 month 6 days	2 years 10 months 24 days	2 years 10 months 24 days
Expected Dividend Yield	0.00%	0.00%	0.00%
Contratual Term in Years	5 years	5 years	5 years
Weighted-Average Grant Date Fair Value	$ 0.68	$ 0.77	$ 0.51

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- Definition

The contractual term of share-based compensation awards.

+ References

No definition available.

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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

+ References

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- Definition

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

+ References

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

+ References

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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- Definition

Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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 (f)(2)(i)
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-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809

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