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Mineral Properties, Guadalupe (Details)			1 Months Ended			6 Months Ended
	Jan. 23, 2019 USD ($)	Oct. 24, 2018 USD ($)	Apr. 30, 2019 USD ($)	Oct. 31, 2018 USD ($)	Oct. 31, 2017 USD ($) item	Jun. 30, 2019 USD ($)
Property, Plant and Equipment [Line Items]
Proceeds from option/sale agreements, net						$ 1,667,000
Deferred option gain						$ 1,392,000
Guadalupe De Los Reyes, Mexico | Option Agreement Two
Property, Plant and Equipment [Line Items]
Interest has right to earn (as a percent)					100.00%
Sale price of gold/silver project					$ 6,000,000
Number of successive payments | item					2
Back in Right (as a percent)					49.00%
Ownership interest if terms of option agreement not fulfilled (as a percent)					0.00%
Ownership to be transferred (as a percent)					100.00%
Proceeds from option/sale agreements, net	$ 100,000	$ 50,000	$ 1,500,000	$ 150,000	$ 1,500,000
Interest income			67,000
Deferred option gain			1,392,000
Value of carrying value for option payment proceeds to be recognized as contract liability			$ 0
Interest rate (as a percent)				1.50%
Guadalupe De Los Reyes, Mexico | Option Agreement Two | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-10-01
Property, Plant and Equipment [Line Items]
Future payment				$ 1,500,000
Timing of future payment				6 months
Guadalupe De Los Reyes, Mexico | Option Agreement Two | Open Pit Mining
Property, Plant and Equipment [Line Items]
Aggregate royalty payments to be received					2,000,000
Guadalupe De Los Reyes, Mexico | Option Agreement Two | Execution of Option Agreement
Property, Plant and Equipment [Line Items]
Sale price of gold/silver project					1,500,000
Guadalupe De Los Reyes, Mexico | Option Agreement Two | One Year Anniversary
Property, Plant and Equipment [Line Items]
Sale price of gold/silver project					1,500,000
Guadalupe De Los Reyes, Mexico | Option Agreement Two | Two Year Anniversary
Property, Plant and Equipment [Line Items]
Sale price of gold/silver project					1,500,000
Guadalupe De Los Reyes, Mexico | Option Agreement Two | Before Four Year Anniversary
Property, Plant and Equipment [Line Items]
Sale price of gold/silver project					$ 1,500,000
Guadalupe De Los Reyes, Mexico | Option Agreement Two | Minimum | Open Pit Mining
Property, Plant and Equipment [Line Items]
Net smelter return royalty (as a percent)					1.00%
Gold price (USD per ounce)					$ 1,600
Guadalupe De Los Reyes, Mexico | Option Agreement Two | Minimum | Underground Mining
Property, Plant and Equipment [Line Items]
Net smelter return royalty (as a percent)					1.00%
Gold price (USD per ounce)					$ 1,600
Guadalupe De Los Reyes, Mexico | Option Agreement Two | Maximum | Open Pit Mining
Property, Plant and Equipment [Line Items]
Net smelter return royalty (as a percent)					2.00%
Gold price (USD per ounce)					$ 1,400
Guadalupe De Los Reyes, Mexico | Option Agreement Two | Maximum | Underground Mining
Property, Plant and Equipment [Line Items]
Net smelter return royalty (as a percent)					2.00%
Gold price (USD per ounce)					$ 1,400
Guadalupe De Los Reyes, Mexico | Minera Gold Stake S A de C V | Option Agreement Two
Property, Plant and Equipment [Line Items]
Ownership interest (as a percent)					100.00%

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