Note 3 - Business Segments and Sales of Products (Tables)

9 Months Ended

Sep. 30, 2021

Notes Tables

Schedule of Segment Reporting Information, by Segment [Table Text Block]

	Three Months Ended September 30,						Nine Months Ended September 30,
	2021			2020			2021			2020
Net sales to unaffiliated customers:
Greens Creek	$	84,806		$	93,494		$	296,978		$	232,218
Lucky Friday		29,783			20,812			98,550			35,097
Casa Berardi		56,065			53,554			185,098			149,731
San Sebastian		—			9,138			176			23,998
Nevada Operations		22,906			22,705			41,593			61,939
	$	193,560		$	199,703		$	622,395		$	502,983
Income (loss) from operations:					Revised						Revised
Greens Creek	$	26,572		$	44,477		$	127,605		$	76,762
Lucky Friday		6,187			950			24,247			(12,388	)
Casa Berardi		(6,233	)		1,419			4,944			5,330
San Sebastian		(1,727	)		1,946			(4,951	)		1,766
Nevada Operations		(12,077	)		5,486			(35,558	)		6,830
Other		(21,294	)		(17,763	)		(54,688	)		(40,249	)
	$	(8,572	)	$	36,515		$	61,599		$	38,051

	September 30, 2021		December 31, 2020
Identifiable assets:				Revised
Greens Creek	$	607,207	$	610,360
Lucky Friday		512,742		520,463
Casa Berardi		705,328		727,008
San Sebastian		38,186		42,617
Nevada Operations		477,621		513,309
Other		333,333		286,453
	$	2,674,417	$	2,700,210

Revenue from External Customers by Products and Services [Table Text Block]

	Three Months Ended September 30,						Nine Months Ended September 30,
	2021			2020			2021			2020
Silver	$	61,890		$	79,684		$	232,414		$	179,013
Gold		94,984			98,457			282,471			278,363
Lead		18,082			13,370			56,198			32,244
Zinc		30,273			26,779			89,501			65,540
Less: Smelter and refining charges		(11,669	)		(18,587	)		(38,189	)		(52,177	)
Sales of products	$	193,560		$	199,703		$	622,395		$	502,983