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Note 15 - Acquisitions - Preliminary Purchase Price Allocation (Details) - USD ($) | Sep. 13, 2016 | Jun. 15, 2015 | Jun. 30, 2015
--- | --- | --- | ---
Mines Management [Member] |  |  |
Cash | $ 4,025,000 |  |
Hecla stock issued (8,309,006 shares at $5.79 per share) | 48,109,000 |  |
Total consideration | 52,134,000 |  |
Cash | 94,000 |  |
Property, plants, equipment and mineral interests | 74,320,000 |  |
Restricted cash | 1,185,000 |  |
Other assets | 329,000 |  |
Total assets | 75,928,000 |  |
Accounts payable and accrued liabilities | 2,357,000 |  |
Deferred tax liability | 20,313,000 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Reclamation Liability | 1,124,000 |  |
Total liabilities | 23,794,000 |  |
Net assets | 52,134,000 |  |
Consideration: |  |  |
Payments to Acquire Businesses, Gross | 4,025,000 |  |
Hecla stock issued (6,252,646 shares at $3.06 per share) | 48,109,000 |  |
Total consideration | 52,134,000 |  |
Assets: |  |  |
Cash | 94,000 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment | 74,320,000 |  |
Other assets | 329,000 |  |
Total assets | 75,928,000 |  |
Liabilities: |  |  |
Accounts payable and accrued liabilities | 2,357,000 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Reclamation Liability | 1,124,000 |  |
Total liabilities | 23,794,000 |  |
Net assets | $ 52,134,000 |  |
Revett Mining Company, Inc. [Member] |  |  |
Cash |  | $ 949,000 |
Hecla stock issued (8,309,006 shares at $5.79 per share) |  | 19,133,000 |
Total consideration |  | 20,082,000 |
Cash |  | 140,000 |
Property, plants, equipment and mineral interests |  | 17,609,000 |
Other assets |  | 280,000 |
Total assets |  | 42,631,000 |
Accounts payable and accrued liabilities |  | 975,000 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Reclamation Liability |  | 17,513,000 | $ 17,500,000
Total liabilities |  | 22,549,000 |
Net assets |  | 20,082,000 |
Consideration: |  |  |
Payments to Acquire Businesses, Gross |  | 949,000 |
Hecla stock issued (6,252,646 shares at $3.06 per share) |  | 19,133,000 |
Total consideration |  | 20,082,000 |
Assets: |  |  |
Cash |  | 140,000 |
Accounts receivable |  | 137,000 |
Inventory - supplies |  | 472,000 |
Deferred tax assets |  | 7,193,000 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment |  | 17,609,000 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Reclamation Insurance Asset |  | 16,800,000 | 16,800,000
Other assets |  | 280,000 |
Total assets |  | 42,631,000 |
Liabilities: |  |  |
Accounts payable and accrued liabilities |  | 975,000 |
Notes payable |  | 4,061,000 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Reclamation Liability |  | 17,513,000 | $ 17,500,000
Total liabilities |  | 22,549,000 |
Net assets |  | $ 20,082,000 |

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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions, acquired at the acquisition date. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 + Details
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- Definition Amount of liabilities incurred for goods and services received that are used in an entity's business and related party payables, assumed at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 + Details
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- Definition Amount of deferred tax liability attributable to taxable temporary differences assumed at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=84176650&loc=d3e31917-109318 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 + Details
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- Definition The amount of inventory recognized as of the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=84160947&loc=d3e2207-128464 + Details
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