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Loans Payable - Note 5 - SMOM - Additional Information (Detail) - USD ($)			3 Months Ended		9 Months Ended
	Oct. 24, 2021	May 03, 2017	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Jan. 31, 2021	Dec. 31, 2020	Apr. 20, 2018	Mar. 31, 2018	Oct. 01, 2016
Debt Instrument [Line Items]
Aggregate amount issuable											$ 3,000,000.0
Note 5 - SMOM [Member]
Debt Instrument [Line Items]
Aggregate amount issuable		$ 3,000,000.0							$ 3,500,000
Interest rate, stated percentage		10.00%
Annual Principal Payment		$ 500,000
Loan balance			$ 3,500,000		$ 3,500,000
Accrued interest			158,795	$ 88,219	471,207	$ 262,739
Note 5 - SMOM [Member] | Loan Termination Agreement With Monaco Financial, LLC and Certain Associated Entities [Member] | Subsequent Event [Member]
Debt Instrument [Line Items]
Extinguishment of Debt principle and accrued interest	$ 5,200,000
Note 5 - SMOM [Member] | Maximum [Member]
Debt Instrument [Line Items]
Convertible debt			2,000,000.0		2,000,000.0
Note 5 - SMOM [Member] | Neptune Minerals, Inc. [Member]
Debt Instrument [Line Items]
Accounts receivable assigned for loan		50.00%
Accounts receivable, gross		$ 0
Note 5 - SMOM [Member] | Aldama Mining Company, S.de R.L. de C.V [Member]
Debt Instrument [Line Items]
Percentage of equity interest		10.00%
Value of equity interest		$ 1,000,000.0
Note 5 - SMOM [Member] | Aldama Mining Company, S.de R.L. de C.V [Member] | Maximum [Member]
Debt Instrument [Line Items]
Percentage of equity interest		50.00%
Note 7 - Monaco 2018 [Member]
Debt Instrument [Line Items]
Aggregate amount issuable			$ 1,099,366		$ 1,099,366			$ 1,099,366
Interest rate, stated percentage			10.00%		10.00%
Loan balance										$ 1,000,000.0
Accrued interest			$ 72,505	$ 34,827	$ 205,981	$ 102,621
Interest rate, increased percentage							18.00%
Note 7 - Monaco 2018 [Member] | Loan Termination Agreement With Monaco Financial, LLC and Certain Associated Entities [Member] | Subsequent Event [Member]
Debt Instrument [Line Items]
Extinguishment of Debt principle and accrued interest	$ 1,600,000

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