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CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (USD $) In Thousands, except Per Share data, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009
COSTS AND EXPENSES: |  |  |
General and administrative | $ 10,928 | $ 5,397 | $ 4,832
Property holding costs | 3,464 | 4,358 | 4,194
Exploration costs | 42,983 | 19,210 | 8,240
Mine construction and development costs | 1,745 |  |
Accretion of asset retirement obligation | 524 | 515 | 762
Depreciation | 577 | 454 | 625
(Gain) loss on sale of assets | (36) | (29) | 526
Write-off of mineral property interests |  | 5,878 | 16,580
Total costs and expenses | 60,185 | 35,783 | 35,759
Operating loss | (60,185) | (35,783) | (35,759)
OTHER INCOME (EXPENSE): |  |  |
Interest income | 94 | 112 | 127
Interest expense | 108 | (15) |
Gain on sale of gold and silver bullion - note 3 | 2,075 |  |
Unrealized loss on silver bullion - note 3 | (3,394) |  |
Gain on sale of marketable equity securities - note 2 | 19 |  |
Foreign currency (loss) gain | (769) | 597 | 1,558
Total other (expense) income | (1,867) | 694 | 1,685
Loss before income taxes | (62,052) | (35,089) | (34,074)
Recovery of income taxes | 180 | 1,998 | 6,376
Net loss | (61,872) | (33,091) | (27,698)
OTHER COMPREHENSIVE LOSS: |  |  |
Unrealized (loss) gain on available-for-sale securities, net of taxes | (1,546) | 542 | (4)
Comprehensive loss | $ (63,418) | $ (32,549) | $ (27,702)
Basic and diluted per share data: |  |  |
Net loss - basic and diluted (in dollars per share) | $ (0.45) | $ (0.27) | $ (0.25)
Weighted average common shares outstanding: |  |  |
- basic (in shares) | 137,046 | 121,987 | 112,224
- diluted (in shares) | 137,046 | 121,987 | 112,224

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- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=6920599&loc=d3e1448-109256 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 171 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Weighted-Average Number of Common Shares Outstanding -URI http://asc.fasb.org/extlink&oid=6528421 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 40 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 8 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 07-4 -Paragraph 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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