Sale of Metals and Related Costs (Details)	3 Months Ended
	Mar. 31, 2021 USD ($)
Disaggregation of Revenue [Line Items]
Percentage of provisional payment for gold and silver	95.00%
Term of final payment within shipment date	30 days
Charge to cost of goods sold	$ 17,000
Minimum
Disaggregation of Revenue [Line Items]
Provisional payment term of gold and silver	7 days
Maximum
Disaggregation of Revenue [Line Items]
Provisional payment term of gold and silver	10 days