CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
REVENUE:
Revenue	$ 23,740	$ 31,400
OPERATING EXPENSES:
Depreciation and depletion	(5,137)	(6,698)
Gross loss	(4,986)	(3,685)
OTHER OPERATING EXPENSES:
Advanced projects	(1,799)	(2,550)
Exploration	(4,956)	(3,790)
General and administrative	(2,083)	(2,064)
Loss from investment in Minera Santa Cruz S.A. (Note 9)	(574)	(2,676)
Depreciation	(75)	(115)
Revision of estimates and accretion of asset retirement obligations (Note 11)	(911)	(660)
Impairment of mineral property interests and plant and equipment (Note 8)		(83,805)
Total other operating expenses	(10,398)	(95,660)
Operating loss	(15,384)	(99,345)
OTHER INCOME (EXPENSE):
Interest and other finance expenses, net	(509)	(1,877)
Other income (Note 4)	1,412	937
Total other income (expense)	903	(940)
Loss before income and mining taxes	(14,481)	(100,285)
Income and mining tax recovery	2,015	1,094
Net loss and comprehensive loss	$ (12,466)	$ (99,191)
Net loss per share (Note 13):
Basic and Diluted (in dollars per share)	$ (0.03)	$ (0.25)
Weighted average common shares outstanding (thousands) (Note 13):
Basic and Diluted (in shares)	441,794	400,370
Gold and silver sales
REVENUE:
Revenue	$ 23,740	$ 31,400
Production costs applicable to sales
OPERATING EXPENSES:
Production costs applicable to sales	$ (23,589)	$ (28,387)