CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenue:
Sale of metals (Note 16)	$ 8,479,000		$ 16,118,000
Oxide plant lease (Note 17)		$ 2,146,000		$ 4,566,000
Total revenue	8,479,000	2,146,000	16,118,000	4,566,000
Costs and expenses:
Cost of metals sold (exclusive of depreciation shown below) (Note 16)	(4,292,000)		(9,156,000)
Oxide plant lease costs (Note 17)		(582,000)		(1,566,000)
Exploration expense	(2,146,000)	(1,226,000)	(4,021,000)	(3,681,000)
El Quevar project expense	(90,000)	(130,000)	(249,000)	(623,000)
Velardea care and maintenance costs	(414,000)	(206,000)	(754,000)	(861,000)
Administrative expense	(911,000)	(852,000)	(3,451,000)	(2,782,000)
Stock based compensation	(75,000)	(105,000)	(1,491,000)	(771,000)
Reclamation expense	(67,000)	(63,000)	(196,000)	(184,000)
Other operating income (expense), net	138,000	24,000	472,000	(78,000)
Depreciation and amortization	(143,000)	(226,000)	(466,000)	(770,000)
Total costs and expenses	(8,000,000)	(3,366,000)	(19,312,000)	(11,316,000)
Income (loss)from operations	479,000	(1,220,000)	(3,194,000)	(6,750,000)
Other income (expense):
Interest and other expense, net (Note 18)	(13,000)	(12,000)	(336,000)	(85,000)
Gain (loss) on foreign currency transactions	133,000	(36,000)	156,000	(92,000)
Total other income (loss)	120,000	(48,000)	(180,000)	(177,000)
Gain (loss) from operations before income taxes	599,000	(1,268,000)	(3,374,000)	(6,927,000)
Income taxes (Note 14)	(188,000)	(18,000)	(203,000)	(18,000)
Net Income (loss)	$ 411,000	$ (1,286,000)	$ (3,577,000)	$ (6,945,000)
Net income (los)s per common share - basic
Income (loss)	$ 0.00	$ (0.01)	$ (0.02)	$ (0.06)
Net income (loss) per common share - diluted
Income (loss) (in dollars per share)	$ 0.00	$ (0.01)	$ (0.02)	$ (0.06)
Weighted average Common Stock outstanding - basic	162,477,039	143,285,564	161,751,452	124,956,140
Weighted average Common Stock outstanding - diluted (1)(in shares)	174,549,498	143,285,564	161,751,452	124,956,140