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Consolidated Statements Of Cash Flows (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Operating activities      
Net income from continuing operations $ 4,244 $ 4,966 $ 1,911
Adjustments to reconcile net income (loss) to net cash provided by operating activities      
Depreciation, depletion, and amortization 3,403 2,527 2,206
Amortization of loan fees-interest expense 55 77 97
Accretion of discount on asset retirement obligation 132 96 112
Gain on sale of vehicles/equipment (83) (37) (15)
Compensation and services paid in stock options 52 165 111
Deferred income tax expense (benefit) 2,226 245 795
(Gain) loss on derivatives 142 407 (626)
Allowance for doubtful accounts 257    
Changes in assets and liabilities      
Restricted cash (386)    
Accounts receivable (29) (62) (369)
Accounts receivable - related party (60) 728 (993)
Inventory and other assets (579) (246) 4
Other assets (115) (37) (22)
Accounts payable-trade 136 653 (191)
Accounts payable-other 60 (728) 993
Accrued liabilities (95) 139 268
Settlement on asset retirement obligation (52) (165) (75)
Net cash provided by operating activities - continuing operations 9,308 8,728 4,206
Net cash (used in) in operating activities - discontinued operations (265) (237) (162)
Net cash provided by operating activities 9,043 8,491 4,044
Investing activities      
Additions to oil and gas properties (8,116) (8,315) (3,533)
Proceeds from sale of oil and gas properties   36  
Additions to Methane Project (464) (811) (69)
Section 1603 refund - methane facilities 1,000    
Additions to other property & equipment (15) (48) (134)
Proceeds from sale of other property & equipment 22    
Derivative costs and settlements   (1,236)  
Net cash (used in) investing activities - continuing operations (7,573) (10,374) (3,736)
Net cash (used in) investing activities - discontinued operations     (22)
Net cash (used in) investing activities (7,573) (10,374) (3,758)
Financing activities      
Proceeds from exercise of options/warrants 52 28 15
Proceeds from borrowings 18,339 17,912 3,655
Repayments of borrowings (20,133) (16,307) (4,371)
Loan fees (30) (60) (50)
Net cash provided by (used in) financing activities - continuing operations (1,772) 1,573 (751)
Net cash provided by financing activities - discontinued operations 265 237 184
Net cash provided by (used in) financing activities (1,507) 1,810 (567)
Net change in cash and cash equivalents - continuing operations (37) (73) (281)
Cash and cash equivalents, beginning of period 68 141 422
Cash and cash equivalents, end of period 31 68 141
Supplemental cash flow information:      
Cash interest payments 688 565 562
Cash paid for taxes 67 8  
Supplemental non-cash investing and financing activities:      
Financed company vehicles 175 262 44
Asset retirement obligations incurred 92 559 950
Accrued capital expenditures included in accounts payable   $ 691