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Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009
Operating activities: |  |  |
Net loss | $ (6,968) | $ (5,340) | $ (2,205)
Adjustments to reconcile net loss to net cash used in operating activities: |  |  |
Loss (gain) on derivative instruments | 137 | (152) | (694)
Depreciation and amortization | 46 | 67 | 91
Loss on equity method investment | 623 | 220 |
Property abandonment and impairment | 10 | 55 | 51
Employee stock option expense (benefit) | 697 | 2,513 | (269)
Deferred income taxes | (635) | (867) | 611
Amortization of interest on long-term debt | 217 | 19 |
Gain on asset and equity security sales | (1,937) | (1,017) | (1,391)
Gain on deconsolidation of PBM subsidiary |  | (724) |
Changes in operating assets and liabilities: |  |  |
Prepaid expenses and other current assets | (2) | 49 | 96
Accounts payable and other current liabilities | (119) | 414 | 112
Current income taxes payable |  | (677) | 385
Net cash used in operating activities | (7,931) | (5,440) | (3,213)
Investing activities: |  |  |
Additions to mineral properties | (1,765) | (11) | (5)
Additions to other assets | (119) | (60) | (15)
Purchase of marketable equity securities |  | (358) |
(Sale) purchase of derivative instruments, net | 42 | (135) | 99
Proceeds from sale of marketable equity securities | 2,035 | 1,301 | 1,852
Decrease in cash from deconsolidation of PBM subsidiary |  | (1,083) |
Proceeds from sale of other assets |  | 22 |
Net cash provided by investing activities | 193 | (324) | 1,931
Financing activities: |  |  |
Short-term margin loan (repayment) borrowing, net | (872) | 2,800 |
Repayment of long-term debt | (500) |  |
Proceeds from common stock offering, net | 8,937 |  |
Proceeds from exercise of options | 247 |  |
Payment to noncontrolling interest | (200) |  |
Noncontrolling interest contribution | 80 | 1,496 | 1,286
Net cash provided by financing activities | 7,692 | 4,296 | 1,286
Net increase (decrease) in cash and cash equivalents | (46) | (1,468) | 4
Cash and cash equivalents, beginning of year | 478 | 1,946 | 1,942
Cash and cash equivalents, end of year | 432 | 478 | 1,946
Supplemental disclosure of cash flow information: |  |  |
Cash paid for interest | 71 | 31 | 23
Cash paid for income taxes |  | 319 |
Supplemental disclosure of non-cash flow investing and financing activities: |  |  |
Acquisition of mineral properties for stock | 1,000 |  |
Loan to noncontrolling interest | 504 |  |
Issuance of stock to noncontrolling interest | 140 |  |
Assumption of Mt. Hamilton long-term debt on acquisition of Mt. Hamilton mineral property |  | 3,066 |
Noncontrolling shareholder contribution of Mt. Hamilton property |  | 3,000 |
Reclassification of deferred noncontrolling shareholder payments to additional paid-in capital |  | 1,188 |
Reclassification of deferred noncontrolling shareholder payments to noncontrolling interest |  | $ 1,594 |

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