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CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Cash flows from operating activities:    
Net loss $ (5,898) $ (381)
(Gain) from discontinued operations (232) (64)
(Loss) from continuing operations (6,130) (445)
Adjustments to reconcile net loss to net cash provided by operations    
Depreciation, depletion & amortization 3,532 3,798
Change in fair value of commodity price risk management activities, net 616 59
(Gain) on sale of marketable securities 0 (47)
Impairment of oil and gas properties 5,828 0
Equity loss from Standard Steam 25 60
(Gain) on sale of assets (696) (10)
Noncash compensation 98 50
Noncash services 16 23
Net change in deferred income taxes 0 (455)
Net changes in assets and liabilities (24) (2,269)
Net cash provided by operating activities 3,265 764
Cash flows from investing activities:    
Acquisition & development of oil & gas properties (6,074) (12,047)
Acquisition of property and equipment 0 (3)
Proceeds from sale of oil and gas properties 0 18,119
Proceeds from sale of marketable securities 0 62
Proceeds from sale of property and equipment 2,563 22
Net change in restricted investments (37) (84)
Net cash (used in) provided by investing activities: (3,548) 6,069
Cash flows from financing activities:    
Issuance of common stock 0 50
Repayments of debt (79) (12,065)
Net cash (used in) financing activities (79) (12,015)
Net cash (used in) provided by operating activities of discontinued operations 84 92
Net decrease in cash and cash equivalents (278) (5,090)
Cash and cash equivalents at beginning of period 2,825 12,874
Cash and cash equivalents at end of period 2,547 7,784
Supplemental disclosures:    
Interest paid 57 64
Non-cash investing and financing activities:    
Unrealized gain from available for sale securities 62 96
Acquisition and development of oil and gas properties through accounts payable 230 1,581
Acquisition and development of oil and gas through asset retirement obligations $ 11 $ 45