Income Taxes - Deferred (Details) - USD ($)	Dec. 31, 2023	Dec. 31, 2022
Deferred tax assets:
Net operating loss carryforwards	$ 104,956,000	$ 109,397,000
Capital loss carry forwards	1,702,000	1,702,000
Reclamation Costs	1,226,000	1,184,000
Stock-based compensation	790,000	868,000
Property, plant and equipment	2,121,000	2,428,000
Other	1,639,000	2,296,000
Deferred tax assets, gross	112,434,000	117,875,000
Less: Valuation allowance	(111,250,000)	(113,987,000)
Total deferred tax assets	1,184,000	3,888,000
Deferred tax liabilities:
Property, plant and equipment	(1,023,000)	(3,831,000)
Other	(161,000)	(57,000)
Total deferred tax liabilities	(1,184,000)	(3,888,000)
Net deferred tax liabilities	$ 0	$ 0