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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $)
In Thousands, unless otherwise specified
 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Cash flows from operating activities:    
Net loss $ (3,316) $ (2,016)
Loss (gain) from discontinued operations 1,246 (471)
(Loss) from continuing operations (2,070) (2,487)
Adjustments to reconcile net loss to net cash provided by operations    
Depreciation, depletion & amortization 11,542 10,215
Change in fair value of commodity price risk management activities, net (1,233) (2,783)
Impairment of oil and gas properties 523 0
Impairment of corporate aircraft 1,756 0
Gain on sale of marketable securities (82) (386)
Equity loss from Standard Steam 168 192
Net change in deferred income taxes (503) (1,084)
Loss (gain) on sale of assets 11 (137)
Noncash compensation 412 1,095
Noncash services 53 0
Net changes in assets and liabilities (1,291) (2,198)
Net cash provided by operating activities 9,286 2,427
Cash flows from investing activities:    
Net redemption of treasury investments 0 17,843
Acquisition & development of oil & gas properties (37,685) (43,699)
Acquisition & development of mining properties 0 (48)
Mining property option payment 0 354
Acquisition of property and equipment (101) (65)
Proceeds from sale of oil and gas properties 21,475 0
Proceeds from sale of marketable securities 101 620
Proceeds from sale of property and equipment 76 147
Net change in restricted investments (99) 37
Net cash (used in) investing activities: (16,233) (24,811)
Cash flows from financing activities:    
Issuance of common stock 50 (186)
Proceeds from new debt 8,000 21,069
Repayments of debt (12,203) (77)
Net cash (used in) provided by financing activities (4,153) 20,806
Net cash (used in) provided by operating activities of discontinued operations 1,949 575
Net cash used in investing activities of discontinued operations 0 (6)
Net decrease in cash and cash equivalents (9,151) (1,009)
Cash and cash equivalents at beginning of period 12,874 5,812
Cash and cash equivalents at end of period 3,723 4,803
Supplemental disclosures:    
Income tax paid 0 0
Interest paid 110 180
Non-cash investing and financing activities:    
Unrealized gain 81 129
Acquisition and development of oil and gas properties through accounts payable 4,679 5,889
Acquisition and development of oil and gas through asset retirement obligations $ 133 $ 134