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Note 14 - Guarantor Subsidiaries - Unaudited Interim Condensed Consolidating Statements of Operations (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Revenues | $ 161,532 | $ 143,649 | $ 448,321 | $ 430,617
Cost of sales | (95,878) | (93,609) | (311,202) | (246,918)
Depreciation, depletion, amortization | (50,774) | (43,464) | (139,038) | (103,335)
General and administrative | (7,978) | (10,327) | (26,855) | (27,849)
Exploration and pre-development | (5,689) | (13,606) | (16,091) | (31,224)
Research and development | (53) | (1,269) | (614) | (5,042)
Gain (loss) on derivative contracts | (4,718) | 19,460 | (2,719) | 40,271
Foreign exchange gain (loss) | 773 | (2,212) | (6,741) | 2,856
Lucky Friday suspension-related costs | (3,722) |  |  |
Acquisition costs | (183) | (6,139) | (593) | (9,656)
Equity in earnings of subsidiaries | 0 | 0 | 0 | 0
Other (expense) income | (14,440) | (11,827) | (47,292) | (35,737)
Income (loss) before income taxes | (21,130) | (25,863) | (111,590) | (4,354)
(Provision) benefit from income taxes | 1,614 | 2,679 | 20,009 | 1,484
Net income (loss) | (19,516) | (23,184) | (91,581) | (2,870)
Series B Preferred Stock dividends declared | (138) | (138) | (414) | (414)
Income (loss) applicable to common shareholders | (19,654) | (23,322) | (91,995) | (3,284)
Changes in comprehensive income (loss) | (3,288) | 3,746 | 4,511 | (3,521)
Comprehensive income (loss) | (22,804) | (19,438) | (87,070) | (6,390)
Revenues | 161,532 | 143,649 | 448,321 | 430,617
Lucky Friday suspension-related costs | (3,722) | (6,519) | (8,766) | (18,337)
Reportable Legal Entities [Member] | Parent Company [Member] |  |  |  |
Revenues | 1,049 | 5,020 | (136) | 8,332
Cost of sales | (472) | (157) | (1,190) | 245
Depreciation, depletion, amortization | 0 | 0 | 0 | 0
General and administrative | (2,951) | (4,802) | (12,110) | (13,250)
Exploration and pre-development | (3) | (1) | (22) | (128)
Research and development | 0 | 0 | 0 | 0
Gain (loss) on derivative contracts | (4,718) | 19,460 | (2,719) | 40,271
Foreign exchange gain (loss) | (3,201) | 4,640 | 7,820 | (9,795)
Lucky Friday suspension-related costs | 0 |  |  |
Acquisition costs | (100) | (5,741) | (221) | (9,041)
Equity in earnings of subsidiaries | (6,761) | (54,618) | (77,563) | (31,105)
Other (expense) income | (2,359) | 13,016 | (5,438) | 11,602
Income (loss) before income taxes | (19,516) | (23,183) | (91,579) | (2,869)
(Provision) benefit from income taxes | 0 | (1) | (2) | (1)
Net income (loss) | (19,516) | (23,184) | (91,581) | (2,870)
Series B Preferred Stock dividends declared | (138) | (138) | (414) | (414)
Income (loss) applicable to common shareholders | (19,654) | (23,322) | (91,995) | (3,284)
Changes in comprehensive income (loss) | (3,288) | 3,746 | 4,511 | (3,520)
Comprehensive income (loss) | (22,804) | (19,438) | (87,070) | (6,390)
Revenues | 1,049 | 5,020 | (136) | 8,332
Lucky Friday suspension-related costs |  | 0 | 0 | 0
Reportable Legal Entities [Member] | Guarantor Subsidiaries [Member] |  |  |  |
Revenues | 144,999 | 124,497 | 409,339 | 381,556
Cost of sales | (85,829) | (80,876) | (280,397) | (219,497)
Depreciation, depletion, amortization | (47,448) | (41,669) | (132,104) | (99,749)
General and administrative | (4,722) | (5,082) | (13,571) | (13,247)
Exploration and pre-development | (4,315) | (11,227) | (10,645) | (22,571)
Research and development | 37 | (732) | (521) | (3,702)
Gain (loss) on derivative contracts | 0 | 0 | 0 | 0
Foreign exchange gain (loss) | 5,129 | (7,629) | (14,636) | 12,230
Lucky Friday suspension-related costs | (3,722) |  |  |
Acquisition costs | (83) | (386) | (219) | (454)
Equity in earnings of subsidiaries | 0 | 0 | 0 | 0
Other (expense) income | (9,930) | (4,756) | (31,573) | (19,034)
Income (loss) before income taxes | (5,884) | (34,379) | (83,093) | (2,805)
(Provision) benefit from income taxes | (625) | (17,530) | 6,864 | (26,348)
Net income (loss) | (6,509) | (51,909) | (76,229) | (29,153)
Series B Preferred Stock dividends declared | 0 | 0 | 0 | 0
Income (loss) applicable to common shareholders | (6,509) | (51,909) | (76,229) | (29,153)
Changes in comprehensive income (loss) | 0 | 0 | 0 | 38
Comprehensive income (loss) | (6,509) | (51,909) | (76,229) | (29,115)
Revenues | 144,999 | 124,497 | 409,339 | 381,556
Lucky Friday suspension-related costs |  | (6,519) | (8,766) | (18,337)
Reportable Legal Entities [Member] | Non-Guarantor Subsidiaries [Member] |  |  |  |
Revenues | 15,484 | 14,132 | 39,118 | 40,729
Cost of sales | (9,577) | (12,576) | (29,615) | (27,666)
Depreciation, depletion, amortization | (3,326) | (1,795) | (6,934) | (3,586)
General and administrative | (305) | (443) | (1,174) | (1,352)
Exploration and pre-development | (1,371) | (2,378) | (5,424) | (8,525)
Research and development | (90) | (537) | (93) | (1,340)
Gain (loss) on derivative contracts | 0 | 0 | 0 | 0
Foreign exchange gain (loss) | (1,155) | 777 | 75 | 421
Lucky Friday suspension-related costs | 0 |  |  |
Acquisition costs | 0 | (12) | (153) | (161)
Equity in earnings of subsidiaries | 0 | 0 | 0 | 0
Other (expense) income | 1,606 | (262) | 2,308 | 722
Income (loss) before income taxes | 1,266 | (3,094) | (1,892) | (758)
(Provision) benefit from income taxes | (1,518) | 385 | 558 | (1,194)
Net income (loss) | (252) | (2,709) | (1,334) | (1,952)
Series B Preferred Stock dividends declared | 0 | 0 | 0 | 0
Income (loss) applicable to common shareholders | (252) | (2,709) | (1,334) | (1,952)
Changes in comprehensive income (loss) | 0 | 0 | 0 | 0
Comprehensive income (loss) | (252) | (2,709) | (1,334) | (1,952)
Revenues | 15,484 | 14,132 | 39,118 | 40,729
Lucky Friday suspension-related costs |  | 0 | 0 | 0
Consolidation, Eliminations [Member] |  |  |  |
Revenues | 0 | 0 | 0 | 0
Cost of sales | 0 | 0 | 0 | 0
Depreciation, depletion, amortization | 0 | 0 | 0 | 0
General and administrative | 0 | 0 | 0 | 0
Exploration and pre-development | 0 | 0 | 0 | 0
Research and development | 0 | 0 | 0 | 0
Gain (loss) on derivative contracts | 0 | 0 | 0 | 0
Foreign exchange gain (loss) | 0 | 0 | 0 | 0
Lucky Friday suspension-related costs | 0 |  |  |
Acquisition costs | 0 | 0 | 0 | 0
Equity in earnings of subsidiaries | 6,761 | 54,618 | 77,563 | 31,105
Other (expense) income | (3,757) | (19,825) | (12,589) | (29,027)
Income (loss) before income taxes | 3,004 | 34,793 | 64,974 | 2,078
(Provision) benefit from income taxes | 3,757 | 19,825 | 12,589 | 29,027
Net income (loss) | 6,761 | 54,618 | 77,563 | 31,105
Series B Preferred Stock dividends declared | 0 | 0 | 0 | 0
Income (loss) applicable to common shareholders | 6,761 | 54,618 | 77,563 | 31,105
Changes in comprehensive income (loss) | 0 | 0 | 0 | (38)
Comprehensive income (loss) | 6,761 | 54,618 | 77,563 | 31,067
Revenues | $ 0 | 0 | 0 | 0
Lucky Friday suspension-related costs |  | $ 0 | $ 0 | $ 0

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- Definition The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 985 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 730 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6420194&loc=d3e21568-108373 + Details
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