Note 13 - Merger with Revett (Tables)

6 Months Ended

Jun. 30, 2015

Business Combinations [Abstract]

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

Consideration:
Cash	$	949
Hecla stock issued (6,252,646 shares at $3.06 per share)		19,133
Total consideration	$	20,082
Fair value of net assets acquired:
Assets:
Cash	$	140
Accounts receivable		137
Inventory - supplies		629
Deferred tax assets		7,137
Property, plants, equipment and mineral interests		19,052
Reclamation insurance		16,800
Other assets		280
Total assets		44,175
Liabilities:
Accounts payable and accrued liabilities		1,218
Notes payable		4,061
Non-current reclamation liability		18,814
Total liabilities		24,093
Net assets	$	20,082

Business Acquisition, Pro Forma Information [Table Text Block]

	Three Months Ended June 30,						Six Months Ended June 30,
(in thousands, except per share amounts)	2015			2014			2015			2014
Sales of products	$	104,065		$	117,502		$	225,425		$	243,295
Net income (loss)		(26,406	)		(16,034	)		(16,380	)		(5,227	)
Income (loss) applicable to common shareholders		(26,544	)		(16,172	)		(16,656	)		(5,503	)
Basic and diluted income (loss) per common share		(0.07	)		(0.05	)		(0.05	)		(0.02	)