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Condensed Consolidated Statements Of Cash Flows In Thousands, unless otherwise specified | 12 Months Ended | 132 Months Ended
--- | --- | ---
Dec. 31, 2012 USD ($) | Dec. 31, 2011 USD ($) | Dec. 31, 2010 USD ($) | Dec. 31, 2012 USD ($)
Cash flows from operating activities: |  |  |  |
Net income/(loss) for the period | $ (70,656) | $ 51,546 | $ (20,020) | $ (100,384)
Adjustments to reconcile net income/(loss) for the period to net cash used in operations: |  |  |  |
Depreciation and amortization | 589 | 420 | 288 | 2,398
Stock-based compensation | 4,225 | 2,020 | 508 | 12,051
Gain on disposal of marketable securities | (192) | (459) | (281) | (8,049)
Loss on extinguishment of convertible notes |  |  | 1,633 | 1,218
Accrued interest and accretion of interest |  | 120 | 273 | 3,519
Gain on disposal of mineral property | (2,934) | (78,072) |  | (80,035)
Transaction Costs |  |  |  | 1,841
Unrealized (gain)/loss on other investments | 50,363 | (37,347) |  | 13,016
Write down of marketable securities | 39 | 158 |  | 959
Write-down of non-current assets | 7,367 |  |  | 7,367
Deferred tax (benefit)/expense | (20,147) | 35,522 |  | 15,375
Other non-cash items |  |  | 608 | 2,195
Change in working capital account items: |  |  |  |
Other current assets | (1,786) | (93) | (575) | (2,214)
Accrued interest payable |  | (504) | (25) | (7,586)
Accounts payable, accrued liabilities and other | 2,977 | 1,699 | 498 | 4,796
Net cash used in operating activities | (30,155) | (24,990) | (17,093) | (133,533)
Cash flows from investing activities: |  |  |  |
Purchases of marketable securities | (153) | (329) | (332) | (1,841)
Proceeds from sale of marketable securities and short term investments | 494 | 592 | 563 | 11,543
Acquisition of long-term investments |  | (3,632) |  | (3,632)
Additions to mineral property |  | (704) | (2,240) | (11,571)
Additions to plant and equipment | (2,066) | (837) | (355) | (22,643)
Change in restricted cash | 64 | (134) |  | (70)
Proceeds from non-current asset disposals | 5,500 | 1,000 |  | 6,740
Cash transferred to Allied Nevada Gold Corp., net of receivable |  |  |  | (24,517)
Net cash (used in)/provided by investing activities | 3,839 | (4,044) | (2,364) | (45,991)
Cash flows from financing activities: |  |  |  |
Net proceeds from equity financings | 24,472 | 28,984 | 33,067 | 161,542
Repayment of convertible notes |  | (23,000) | (2,233) | (26,108)
Proceeds from exercise of warrants | 1,425 | 309 |  | 40,754
Proceeds from exercise of compensation options | 733 |  |  | 733
Proceeds from exercise of stock options | 94 | 883 | 53 | 4,068
Issuance of convertible notes |  |  |  | 28,345
Cash paid in lieu of capital stock issuances |  | (107) |  | (107)
Transaction costs |  |  |  | (1,841)
Net cash provided by financing activities | 26,724 | 7,069 | 30,887 | 207,386
Increase/(decrease) in cash and cash equivalents | 408 | (21,965) | 11,430 | 27,862
Decrease in cash and cash equivalents - discontinued operations |  |  |  | (10,255)
Net increase/(decrease) in cash and cash equivalents | 408 | (21,965) | 11,430 | 17,607
Cash and cash equivalents, beginning of period | 17,873 | 39,838 | 28,408 |
Cash and cash equivalents, end of period | $ 18,281 | $ 17,873 | $ 39,838 | $ 18,281

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- Definition The cash outflow from the repayment of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 -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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3291-108585 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 20 -Subparagraph b -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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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 + Details
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- Definition This amount represents increase in accrued interest as of the balance sheet date. + References No definition available. + Details
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- Definition Cash paid by the Company on behalf of the grantee for withholding taxes that were due upon the exercise of restricted stock units. Such cash payments were made in lieu of issuing common shares of the Company's capital stock. + References No definition available. + Details
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- Definition The gains (losses) included in results of operations resulting from the sale or disposal of mineral property, which do not qualify for treatment as discontinued operations. This item does not include any gain (loss) recognized on the sale of oil and gas property or timber property. + References No definition available. + Details
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- Definition The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of investments, not including unrealized gains or losses on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity, held at each balance sheet date and included in earnings for the period. + References No definition available. + Details
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