Note 3 - Revision of Previously Issued Financial Statements for Immaterial Misstatements (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

Schedule of Error Corrections and Prior Period Adjustments [Table Text Block]

	As of and for the Year Ended December 31, 2020
(in thousands, except per share amounts)	As Previously Reported			Adjustment			As Revised
Consolidated Balance Sheet
Inventories: Concentrates, doré, and stockpiled ore	$	57,936		$	(369	)	$	57,567
Total current assets		284,681			(369	)		284,312
Properties, plants, equipment and mineral interests, net		2,345,219			32,855			2,378,074
Total assets		2,667,724			32,486			2,700,210
Accrued taxes		8,349			(2,575	)		5,774
Total current liabilities		149,785			(2,575	)		147,210
Deferred tax liability		132,475			23,616			156,091
Total liabilities		965,384			21,041			986,425
Accumulated deficit		(379,519	)		11,445			(368,074	)
Total shareholders' equity		1,702,340			11,445			1,713,785
Total liabilities and shareholders' equity		2,667,724			32,486			2,700,210
Consolidated Statements of Operations and Comprehensive Income (Loss)
Cost of sales and other direct production costs		389,040			(6,377	)		382,663
Depreciation, depletion and amortization		157,130			(9,020	)		148,110
Total cost of sales		546,170			(15,397	)		530,773
Gross profit		145,703			15,397			161,100
Income from operations		51,581			15,397			66,978
Loss before income and mining taxes		(16,655	)		15,397			(1,258	)
Income and mining tax provision		(135	)		(8,064	)		(8,199	)
Net loss		(16,790	)		7,333			(9,457	)
Loss applicable to common shareholders		(17,342	)		7,333			(10,009	)
Comprehensive loss		(12,369	)		7,333			(5,036	)
Basic loss per common share after preferred dividends		(0.03	)		0.01			(0.02	)
Diluted loss per common share after preferred dividends		(0.03	)		0.01			(0.02	)
Consolidated Statements of Cash Flows
Net loss		(16,790	)		7,333			(9,457	)
Depreciation, depletion and amortization		164,026			(9,020	)		155,006
Deferred income taxes		(5,505	)		1,687			(3,818	)
Cash provided by operating activities		180,793			—			180,793

	As of and for the Year Ended December 31, 2019
(in thousands, except per share amounts)	As Previously Reported			Adjustment			As Revised
Consolidated Balance Sheet
Inventories: Concentrates, doré, and stockpiled ore	$	30,364		$	(286	)	$	30,078
Total current assets		179,124			(286	)		178,838
Properties, plants, equipment and mineral interests, net		2,423,698			23,752			2,447,450
Total assets		2,637,308			23,466			2,660,774
Deferred tax liability		138,282			19,355			157,637
Total liabilities		944,885			19,355			964,240
Accumulated deficit		(353,331	)		4,111			(349,220	)
Total shareholders' equity		1,692,423			4,111			1,696,534
Total liabilities and shareholders' equity		2,637,308			23,466			2,660,774
Consolidated Statements of Operations and Comprehensive Income (Loss)
Cost of sales and other direct production costs	$	450,349		$	(2,364	)	$	447,985
Depreciation, depletion and amortization		199,518			(8,067	)		191,451
Total cost of sales		649,867			(10,431	)		639,436
Gross profit		23,399			10,431			33,830
Loss from operations		(57,109	)		10,431			(46,678	)
Loss before income and mining taxes		(123,658	)		10,431			(113,227	)
Income and mining tax benefit		24,101			(5,783	)		18,318
Net loss		(99,557	)		4,648			(94,909	)
Loss applicable to common shareholders		(100,109	)		4,648			(95,461	)
Comprehensive loss		(94,398	)		4,648			(89,750	)
Basic loss per common share after preferred dividends		(0.20	)		0.01			(0.19	)
Diluted loss per common share after preferred dividends		(0.20	)		0.01			(0.19	)
Consolidated Statements of Cash Flows
Net loss		(99,557	)		4,648			(94,909	)
Depreciation, depletion and amortization		204,475			(8,067	)		196,408
Deferred income taxes		(33,387	)		3,419			(29,968	)
Cash provided by operating activities		120,866			—			120,866