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Net proceeds from issuance or sale of equity.

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Share based compensation arrangement by share based payment award options grants weighted average remaining contractual term.

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Share issuance costs, including one-time transaction costs and commissions.

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Face amount or stated value per share of common stock.

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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The cash outflow for cost incurred directly with the issuance of an equity security.

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

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The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

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Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Gross number of share options (or share units) granted during the period.

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Number of shares issued during the period as a result of the conversion of convertible securities.

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Capital Stock - Additional Information (Details)	3 Months Ended	12 Months Ended
Capital Stock - Additional Information (Details)	Dec. 31, 2019 shares	Jun. 30, 2021 USD ($) ConvertibleNote $ / shares shares	Jun. 30, 2020 USD ($) $ / shares shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Capital stock, shares authorized \| shares		200,000,000	50,000,000
Capital stock, par value \| $ / shares		$ 0.01	$ 0.01
Aggregate number of units issued (in shares) \| shares	161,217	166,792	1,096,791
Aggregate number of units issued, per unit \| $ / shares		$ 1.09	$ 0.89
Capital stock, shares issued \| shares		38,154,109	32,958,404
Capital stock, shares outstanding \| shares		38,154,109	32,958,404
Options, Granted \| shares		755,000	690,000
Stock based compensation		$ 436,777	$ 203,192
Total unrecognized compensation cost related to non-vested share based compensation		$ 143,998	$ 153,802
Expected weighted-average period of unrecognized compensation cost		9 months 10 days	1 year 18 days
Total fair values of shares vested		$ 332,835	$ 202,121
Service Condition
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock based compensation		286,096	73,509
Performance Condition
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock based compensation		$ 150,681	$ 129,683
Employees, Directors and Consultants
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options, Granted \| shares		755,000	690,000
2015 and 2016 Stock Incentive and Compensation Plans
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted average remaining contractual term (in years), grants		5 years
2015 and 2016 Stock Incentive and Compensation Plans \| Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of options and shares available for grant to employees \| shares		2,169,000
Mineral Property
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Aggregate number of units issued (in shares) \| shares		257,353
Fair value of shares issued		$ 277,941
Interest Accrued And Owing
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Aggregate number of units issued (in shares) \| shares		362,427
Fair value of shares issued		$ 398,777
Shares Average Price of $1.16
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Aggregate number of units issued (in shares) \| shares		3,209,133
Aggregate number of units issued, per unit \| $ / shares		$ 1.21
Share issuance costs		$ 157,979
Shares at Price of $1.04
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Aggregate number of units issued (in shares) \| shares			4,807,700
Aggregate number of units issued, per unit \| $ / shares			$ 1.04
Share issuance costs			$ 421,558
Proceeds from issuance of common stock and warrants			5,000,008
Net proceeds from issuance of common stock and warrants			$ 4,578,450
Shares Average Price of $1.17
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Aggregate number of units issued (in shares) \| shares			372,742
Aggregate number of units issued, per unit \| $ / shares			$ 1.17
Proceeds from issuance of common stock and warrants			$ 436,783
Net proceeds from issuance of common stock and warrants			312,518
Share issuance costs, including one-time transaction costs and commissions			$ 124,265
2019 Secured Convertible Notes
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Conversion of convertible notes to shares (in shares) \| shares		1,200,000
Number of senior secured convertible notes converted \| ConvertibleNote		1,200