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Note 4 - Property, Plant and Equipment, Net and Mineral Rights (Details Textual)			1 Months Ended	3 Months Ended		6 Months Ended
	Jun. 30, 2023 USD ($)	Apr. 26, 2023 USD ($)	Mar. 31, 2023 USD ($) a	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Jun. 30, 2027 USD ($)	Dec. 31, 2023 USD ($)
Depreciation				$ 139,060	$ 215,376	$ 278,998	$ 335,473
Property, Plant and Equipment Not Yet Placed in Service				402,931		402,931
Depletion						0	0
Payments to Acquire Businesses, Gross						(0)	12,000,000
Payments to Acquire Mineral Rights						465,938	816,071
Senior Water Rights [Member]
Area of Real Estate Property (Acre) \| a			50
Junior Water Rights [Member]
Area of Real Estate Property (Acre) \| a			16
Water Rights [Member]
Payments to Acquire Mineral Rights			$ 730,595
Aqua Metals Transfer LLC [Member]
Asset, Held-for-Sale, Not Part of Disposal Group	$ 20,638,942				20,638,942		20,638,942
Disposal Group, Including Discontinued Operation, Liabilities	$ 27,803,564				$ 27,803,564		$ 27,803,564
Aqua Metals Transfer LLC [Member]
Payments to Acquire Businesses, Gross		$ 12,000,000
Commercial Land in Lyon County, Nevada [Member]
Asset, Held-for-Sale, Not Part of Disposal Group				6,328,339		6,328,339
Membership Interest Including Mineral Rights in Comstock Northern Exploration LLC [Member]
Asset, Held-for-Sale, Not Part of Disposal Group				1,321,297		1,321,297
Water Rights [Member]
Asset, Held-for-Sale, Not Part of Disposal Group				730,595		730,595
Mackay Precious Metals Inc [Member] \| Mining Lease [Member]
Lessor, Operating Lease, Term of Contract (Year)	20 years				20 years		20 years
Operating Lease, Initial Direct Cost Expense, over Term	$ 1,250,000
Lessor, Operating Lease, Quarterly Lease Payments	$ 875,000				$ 875,000		$ 875,000		$ 375,000
Net Smelter Return Royalty Percentage	1.50%				1.50%		1.50%
Other Commitment	$ 1,000,000				$ 1,000,000		$ 1,000,000
Operating Lease, Lease Income				390,626	$ 0	781,251	$ 0
Operating Lease, Lease Income, Lease Payments				750,000		750,000
Operating Lease, Reimbursement Expenses				31,251		31,251
Deferred Gain, Current				$ 1,187,499		$ 1,187,499
Mackay Precious Metals Inc [Member] \| Mining Lease [Member] \| Forecast [Member]
Lessor, Operating Lease, Quarterly Lease Payments								$ 250,000