CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
REVENUE:
Revenue	$ 18,291	$ 36,383	$ 49,691	$ 51,966
OPERATING EXPENSES:
Production costs applicable to sales	(22,354)	(24,699)	(50,741)	(35,848)
Depreciation and depletion	(4,812)	(7,007)	(11,510)	(10,013)
Gross (loss) profit	(8,875)	4,677	(12,560)	6,105
OTHER OPERATING EXPENSES:
Advanced projects	(2,887)	(2,095)	(5,437)	(4,741)
Exploration	(3,548)	(5,872)	(7,338)	(10,022)
General and administrative	(2,240)	(3,172)	(4,304)	(5,433)
Loss from investment in Minera Santa Cruz S.A. (note 10)	(1,045)	(4,137)	(3,721)	(6,447)
Depreciation	(114)	(169)	(229)	(321)
Revision of estimates and accretion of asset retirement obligations (note 12)	(457)	(427)	(1,117)	(888)
Impairment of mineral property interests and plant and equipment (note 9)			(83,805)
Other operating (note 4)	(1,968)		(1,968)
Total other operating expenses	(12,259)	(15,872)	(107,919)	(27,852)
Operating loss	(21,134)	(11,195)	(120,479)	(21,747)
OTHER INCOME (EXPENSE):
Interest and other finance expense, net	(1,754)	(2,783)	(3,631)	(3,296)
Other income (note 5)	3,044	463	3,981	1,510
Total other income (expense)	1,290	(2,320)	350	(1,786)
Loss before income and mining taxes	(19,844)	(13,515)	(120,129)	(23,533)
Income and mining tax recovery	30	501	1,124	383
Net loss	$ (19,814)	$ (13,014)	$ (119,005)	$ (23,150)
Net loss per share (note 14):
Basic and Diluted (in dollars per share)	$ (0.05)	$ (0.04)	$ (0.30)	$ (0.07)
Weighted average common shares outstanding (thousands) (note 14):
Basic and Diluted (in shares)	400,513	346,998	400,442	346,095
Gold and silver sales
REVENUE:
Revenue	$ 18,291	$ 36,383	$ 49,691	$ 51,966
Production costs applicable to sales
OPERATING EXPENSES:
Production costs applicable to sales	$ (22,354)	$ (24,699)	$ (50,741)	$ (35,848)