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Condensed Consolidated Statements Of Cash Flow (USD $)
In Thousands, unless otherwise specified
 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Operating activities    
Net income from continuing operations $ 2,318 $ 3,385
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation, depletion, and amortization 2,210 2,511
Amortization of loan fees-interest expense 24 42
Accretion on asset retirement obligation 100 99
Gain on sale of assets (49) (77)
Compensation and services paid in stock options and stock 25 42
Deferred tax expense 1,860 1,792
Loss on derivatives    140
Allowance for doubtful accounts (98) 238
Changes in assets and liabilities:    
Accounts receivable 283 (312)
Inventory and other assets 213 (519)
Accounts payable 24 254
Accrued and other current liabilities (148) 73
Settlement on asset retirement obligation (46) (52)
Net cash provided by operating activities - continuing operations 6,716 7,616
Net cash (used in) operating activities - discontinued operations (142) (209)
Net cash provided by operating activities 6,574 7,407
Investing activities    
Net additions to oil and gas properties (836) (7,700)
Net additions to methane project    (459)
Section 1603 payment- methane facilities    1,000
Net additions to other property and equipment (8) (15)
Proceeds from sale of other property and equipment 113 16
Net cash (used in) investing activities - continuing operations (731) (7,158)
Net cash provided by investing activities - discontinued operations 1,395   
Net cash provided by (used in) investing activities 664 (7,158)
Financing activities    
Proceeds from exercise of options    28
Payment in lieu of exercise of options (60)   
Repayments of borrowings (11,249) (15,129)
Proceeds from borrowings 5,322 14,665
Loan fees (10) (30)
Net cash (used in) financing activities - continuing operations (5,997) (466)
Net cash provided by (used in) financing activities - discontinued operations (1,253) 209
Net cash (used in) financing activities (7,250) (257)
Net change in cash and cash equivalents - continuing operations (12) (8)
Cash and cash equivalents, beginning of period 31 68
Cash and cash equivalents, end of period 19 60
Supplemental cash flow information:    
Cash interest payments 295 543
Cash paid for taxes    67
Supplemental non-cash investing and financing activities:    
Financed company vehicles 78 175
Asset retirement obligations incurred 7 92
Accrued capital expenditures included in accounts payable $ 245 $ 206