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Note 16 - Acquisitions (Details) - Preliminary Purchase Price Allocation In Thousands, unless otherwise specified | 7 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Dec. 31, 2013 USD ($) | Dec. 31, 2013 CAD | Sep. 30, 2013 USD ($) | Apr. 30, 2013 USD ($) | Sep. 30, 2013 Accrued Payroll and Related Benefits [Member] USD ($) | Sep. 30, 2013 Accrued Taxes [Member] USD ($) | Sep. 30, 2013 Non-current Deferred Tax Liability [Member] USD ($) | Sep. 30, 2013 Non-current Reclamation [Member] USD ($) | Sep. 30, 2013 Other Non-current Liabilities [Member] USD ($) | Sep. 30, 2013 Bullion and Stockpiled Ore [Member] USD ($) | Sep. 30, 2013 Supplies [Member] USD ($)
Consideration: |  |  |  |  |  |  |  |  |  |  |
Cash payments | $ 496,200 | 514,500 | $ 496,211 |  |  |  |  |  |  |  |
Hecla stock issued (56,997,790 shares at $3.83 per share) | 218,300 | 226,300 | 218,302 |  |  |  |  |  |  |  |
Total consideration |  | 740,800 | 714,513 |  |  |  |  |  |  |  |
Assets: |  |  |  |  |  |  |  |  |  |  |
Cash |  |  | 177,587 |  |  |  |  |  |  |  |
Accounts receivable |  |  | 14,307 |  |  |  |  |  |  |  |
Inventory |  |  |  |  |  |  |  |  |  | 8,090 | 5,704
Other current assets |  |  | 7,036 |  |  |  |  |  |  |  |
Properties, plants, equipment and mineral interests, net |  |  | 715,391 | 715,400 |  |  |  |  |  |  |
Non-current restricted cash and investments |  |  | 4,471 |  |  |  |  |  |  |  |
Other non-current assets |  |  | 795 |  |  |  |  |  |  |  |
Total assets |  |  | 933,381 |  |  |  |  |  |  |  |
Liabilities: |  |  |  |  |  |  |  |  |  |  |
Accounts payable |  |  | 22,227 |  |  |  |  |  |  |  |
Accrued liabilities |  |  |  |  | 7,613 | 509 |  |  |  |  |
Non-current liabilities |  |  |  |  |  |  | 177,016 | 11,113 | 390 |  |
Total liabilities |  |  | 218,868 |  |  |  |  |  |  |  |
Net assets |  |  | $ 714,513 |  |  |  |  |  |  |  |

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- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=7488404&loc=d3e6927-128479 + Details
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