The per share amount of fair value of warrant or right.

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- Definition

Represents number of shares comprising one unit issued.

+ References

No definition available.

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Number of units issued during period.

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No definition available.

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No definition available.

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- Definition

The net cash inflow from the additional capital contribution to the entity.

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No definition available.

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- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
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- Definition

Number of securities into which each warrant or right may be converted. For example, but not limited to, each warrant may be converted into two shares.

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No definition available.

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Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

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- Definition

The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity.

+ References

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

The cash inflow associated with the amount received from holders exercising their stock warrants.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
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Price of a single share of a number of saleable stocks of a company.

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No definition available.

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- Definition

Per share or per unit amount of equity securities issued.

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No definition available.

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Number of new stock issued during the period.

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Period between issuance and expiration of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
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-SubTopic 10
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Note 14 - Capital Stock (Details Textual) - USD ($) $ / shares in Units, $ in Thousands				2 Months Ended	12 Months Ended
	Apr. 08, 2021	Mar. 19, 2021	Sep. 23, 2020	Sep. 28, 2022	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2019
Class of Warrant or Right, Exercise Price of Warrants or Rights (in CAD per share)					$ 1.92	$ 1.90	$ 2.03	$ 1.94
Share Price (in dollars per share)			$ 0.96
Class of Warrant or Right, Fair Value Per Share (in dollars per share)			$ 0.23
Proceeds from Warrant Exercises					$ 3,325	$ 3,589	$ 0
Subsequent Event [Member]
Proceeds from Warrant Exercises				$ 6,141
Warrant Issued with September 2020 Offering [Member]
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares)			1
Class of Warrant or Right, Exercise Price of Warrants or Rights (in CAD per share)			$ 1.80
Warrants and Rights Outstanding, Term (Month)			24 months
Warrant Issued to Agents [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights (in CAD per share)	$ 4.125		$ 1.80
Warrants and Rights Outstanding, Term (Month)	5 years		24 months
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)	181,818		583,333
Class of Warrant or Right, Fair Value Per Share (in dollars per share)					$ 1.80
September 2020 Offering [Member]
Number of Units Issued During Period (in shares)			12,500,000
Shares Issued, Price Per Share (in dollars per share)			$ 1.20
Proceeds from Issuance or Sale of Equity, Total			$ 15,000
Number of Shares per Unit Issued (in shares)			1
Number of Warrants per Unit (in shares)			0.5
The 2020 At-the-market Offering [Member]
Stock Issued During Period, Shares, New Issues (in shares)						13,668,906
Proceeds from Issuance of Common Stock, Net						$ 29,321
Direct Offering [Member]
Stock Issued During Period, Shares, New Issues (in shares)	3,636,364	10,000,000
Proceeds from Issuance of Common Stock, Net	$ 11,316	$ 29,084
The 2021 At-the-market Offerings [Member]
Stock Issued During Period, Shares, New Issues (in shares)					47,507,536	2,265,700
Proceeds from Issuance of Common Stock, Net					$ 163,814	$ 6,157
The 2021 At-the-market Offerings [Member] \| Subsequent Event [Member]
Stock Issued During Period, Shares, New Issues (in shares)				3,510,100
Proceeds from Issuance of Common Stock, Net				$ 14,808