Note 15 - Acquisitions (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]

Consideration:
Cash payments	$	161,704
Hecla stock issued (75,276,176 shares at $3.22 per share)		242,389
Hecla warrants issued		9,830
Total consideration	$	413,923
Fair value of net assets acquired:
Assets:
Cash	$	12,874
Accounts receivable		3,453
Inventory - supplies		6,565
Inventory - finished goods, in-process material and stockpiled ore		10,075
Other current assets		2,583
Properties, plants, equipment and mineral interests		510,015
Non-current investments		1,596
Non-current restricted cash and investments		9,504
Total assets		556,665
Liabilities:
Accounts payable and accrued liabilities		17,799
Accrued payroll and related benefits		8,245
Accrued taxes		421
Lease liability		2,080
Debt		35,086
Asset retirement obligation		19,571
Deferred tax liability		59,540
Total liabilities		142,742
Net assets	$	413,923

Value beyond proven and probable reserves	$	382.2
Mills and tailings facilities		43.8
Development		32.1
Buildings and equipment		28.5
Mineral properties		18.8
Asset retirement obligation asset		3.1
Land		2.9
Total	$	511.4

Business Acquisition, Pro Forma Information [Table Text Block]

	(unaudited)
	Year Ended December 31,
(in thousands, except per share amounts)	2018			2017
Sales	$	680,261		$	785,859
Net (loss) income		(19,574	)		(35,203	)
(Loss) income applicable to common shareholders		(20,126	)		(35,755	)
Basic and diluted (loss) income per common share		(0.04	)		(0.08	)