CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenue:
Sale of metals (Note 16)	$ 5,268,000	$ 8,479,000	$ 18,700,000	$ 16,118,000
Total revenue	5,268,000	8,479,000	18,700,000	16,118,000
Costs and expenses:
Cost of metals sold (exclusive of depreciation shown below) (Note 16)	(4,374,000)	(4,292,000)	(13,335,000)	(9,156,000)
Exploration expense	(2,376,000)	(2,146,000)	(7,038,000)	(4,021,000)
El Quevar project expense	(154,000)	(90,000)	(448,000)	(249,000)
Velardea care and maintenance costs	(370,000)	(414,000)	(843,000)	(754,000)
Administrative expense	(918,000)	(911,000)	(3,466,000)	(3,451,000)
Stock-based compensation	(194,000)	(75,000)	(543,000)	(1,491,000)
Reclamation expense	(71,000)	(67,000)	(211,000)	(196,000)
Other operating income, net	384,000	138,000	1,274,000	472,000
Depreciation and amortization	(89,000)	(143,000)	(241,000)	(466,000)
Total costs and expenses	(8,162,000)	(8,000,000)	(24,851,000)	(19,312,000)
(Loss) income from operations	(2,894,000)	479,000	(6,151,000)	(3,194,000)
Other income (expense):
Interest and other expense, net (Note 17)	(3,000)	(13,000)	(17,000)	(336,000)
Gain on foreign currency transactions	154,000	133,000	252,000	156,000
Total other income (expense)	151,000	120,000	235,000	(180,000)
(Loss) gain from operations before income taxes	(2,743,000)	599,000	(5,916,000)	(3,374,000)
Income taxes (Note 14)	46,000	(188,000)	90,000	(203,000)
Net (loss) income	$ (2,697,000)	$ 411,000	$ (5,826,000)	$ (3,577,000)
Net income (loss) per common share - basic
Net (loss) income per common share - basic	$ (0.02)	$ 0.00	$ (0.04)	$ (0.02)
Weighted-average shares outstanding - basic (1)	166,948,751	162,477,039	164,872,701	161,751,452