Note 6 - Business Segments (Tables)

9 Months Ended

Sep. 30, 2017

Notes Tables

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

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
Net sales to unaffiliated customers:
Greens Creek	$	61,061		$	85,804		$	191,250		$	199,260
Lucky Friday (1)		199			26,140			20,022			70,152
Casa Berardi		53,990			41,131			139,524			126,614
San Sebastian		25,589			26,318			66,866			85,686
	$	140,839		$	179,393		$	417,662		$	481,712
Income (loss) from operations:
Greens Creek	$	16,575		$	26,498		$	46,107		$	49,407
Lucky Friday		(4,642	)		6,652			(8,974	)		13,442
Casa Berardi		2,882			3,691			(1,071	)		16,246
San Sebastian		17,017			18,415			42,363			58,911
Other		(10,890	)		(17,016	)		(37,637	)		(42,584	)
	$	20,942		$	38,240		$	40,788		$	95,422

Reconciliation of Assets from Segment to Consolidated [Table Text Block]

	September 30, 2017		December 31, 2016
Identifiable assets:
Greens Creek	$	666,463	$	681,303
Lucky Friday		432,752		442,829
Casa Berardi		814,053		806,044
San Sebastian		55,395		33,608
Other		427,520		407,893
	$	2,396,183	$	2,371,677