CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Revenue:
Sale of metals (Note 16)	$ 1,778,000
Oxide plant lease (Note 17)		$ 1,196,000
Total revenue	1,778,000	1,196,000
Costs and expenses:
Cost of metals sold (exclusive of depreciation shown below) (Note 16)	(1,536,000)
Oxide plant lease costs (Note 17)		(564,000)
Exploration expense	(781,000)	(1,631,000)
El Quevar project expense	(106,000)	(248,000)
Velardeña care and maintenance costs	(199,000)	(463,000)
Administrative expense	(1,548,000)	(1,163,000)
Stock based compensation	(429,000)	(52,000)
Reclamation expense	(66,000)	(59,000)
Other operating income, net	199,000	4,000
Depreciation and amortization	(155,000)	(279,000)
Total costs and expenses	(4,621,000)	(4,455,000)
Loss from operations	(2,843,000)	(3,259,000)
Other income (expense):
Interest and other expense, net (Note 18)	(360,000)	(27,000)
Other income	52,000
Loss on foreign currency translations	(79,000)	(50,000)
Total other loss	(387,000)	(77,000)
Loss from operations before income taxes	(3,230,000)	(3,336,000)
Income taxes (Note 14)	52,000	0
Net loss	$ (3,178,000)	$ (3,336,000)
Net loss per common share — basic
Loss	$ (0.02)	$ (0.03)
Weighted average Common Stock outstanding - basic	160,442,137	107,247,298