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Condensed Consolidated Statements Of Cash Flow (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Operating activities    
Net income from continuing operations $ 978 $ 954
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation, depletion, and amortization 794 709
Amortization of loan fees-interest expense 8 14
Accretion on asset retirement obligation 35 33
Gain on sale of assets    (34)
Compensation and services paid in stock options and stock 9 21
Deferred tax expense 527 531
Loss on derivatives    121
Changes in assets and liabilities:    
Accounts receivable (250) (486)
Inventory and other assets 81 (1,326)
Accounts payable 151 500
Accrued and other current liabilities 26 (112)
Settlement on asset retirement obligation    (23)
Net cash provided by operating activities - continuing operations 2,359 902
Net cash (used in) operating activities - discontinued operations (63) (90)
Net cash provided by operating activities 2,296 812
Investing activities    
Net additions to oil and gas properties (209) (2,478)
Net additions to methane project    (345)
Net additions to other property and equipment    (4)
Net cash used in investing activities - continuing operations (209) (2,827)
Financing activities    
Payment in lieu of exercise of options/warrants (60)   
Repayments of borrowings (4,222) (3,699)
Proceeds from borrowings 2,188 5,647
Loan fees (10) (30)
Net cash provided by (used in) financing activities - continuing operations (2,104) 1,918
Net cash provided by financing activities - discontinued operations 63 90
Net cash provided by (used in) financing activities (2,041) 2,008
Net change in cash and cash equivalents - continuing operations 46 (7)
Cash and cash equivalents, beginning of period 31 68
Cash and cash equivalents, end of period 77 61
Supplemental cash flow information:    
Cash interest payments 124 173
Supplemental non-cash investing and financing activities:    
Financed company vehicles    28
Asset retirement obligations incurred    33
Accrued capital expenditures included in accounts payable    $ 918