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Mineral Properties - Guadalupe (Details) - USD ($) $ in Thousands	1 Months Ended
	Jul. 31, 2021	Jan. 31, 2021	Mar. 31, 2021	Dec. 31, 2020	Jun. 30, 2020
Property, Plant and Equipment [Line Items]
Mineral properties, Net			$ 2,146	$ 2,146
Deferred option gain			1,168	$ 68
Guadalupe De Los Reyes, Mexico | Option Agreement Two
Property, Plant and Equipment [Line Items]
Payments Receivable In Lieu Of Grant Of Royalty And Back-In Rights					$ 2,100
Payments Received In Lieu Of Grant Of Royalty And Back-In Rights		$ 1,100
Deferred option gain			$ 1,100
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-07-31 | Guadalupe De Los Reyes, Mexico | Option Agreement Two
Property, Plant and Equipment [Line Items]
Payments Received In Lieu Of Grant Of Royalty And Back-In Rights	$ 1,000

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Mineral properties, net of adjustments.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 360
-Section 25
-Paragraph 7
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