Note 2 - Business Segments and Sales of Products (Tables)

3 Months Ended

Mar. 31, 2021

Notes Tables

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

	Three Months Ended March 31,
	2021			2020
Net sales to unaffiliated customers:
Greens Creek	$	98,409		$	53,833
Lucky Friday		29,122			2,830
Casa Berardi		72,911			46,172
San Sebastian		173			9,927
Nevada Operations		10,237			24,163
	$	210,852		$	136,925
Income (loss) from operations:
Greens Creek	$	44,600		$	4,117
Lucky Friday		6,323			(8,120	)
Casa Berardi		9,117			(3,880	)
San Sebastian		(2,263	)		679
Nevada Operations		(3,140	)		2,889
Other		(16,188	)		(10,749	)
	$	38,449		$	(15,064	)

	March 31, 2021		December 31, 2020
Identifiable assets:
Greens Creek	$	609,612	$	610,360
Lucky Friday		513,645		520,463
Casa Berardi		683,103		694,522
San Sebastian		41,238		42,617
Nevada Operations		510,514		513,309
Other		296,965		286,453
	$	2,655,077	$	2,667,724

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

	Three Months Ended March 31,
	2021			2020
Silver	$	77,760		$	37,572
Gold		101,408			90,694
Lead		15,893			6,420
Zinc		29,191			17,308
Less: Smelter and refining charges		(13,400	)		(15,069	)
Sales of products	$	210,852		$	136,925