CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Cash flows from operating activities
Net income (loss)	$ 314us-gaap_ProfitLoss	$ (40)us-gaap_ProfitLoss
Adjustments to reconcile net income to net cash provided by (used in) operating activities
Depreciation, depletion and amortization	187	193
Write-off (recovery) of affiliate receivable	(739)	0
Changes in operating assets and liabilities
Other current and non-current assets	124	(29)
Accounts payable and other liabilities	284	(608)
Net cash provided by (used) in operating activities	170	(484)
Cash flows from investing activities
Investment in oil & gas properties	(92)	24
Investment in undeveloped land	0us-gaap_ExplorationCosts	(624)us-gaap_ExplorationCosts
Fixed asset additions	(15)	(22)
Net cash provided by (used in) investing activities	(107)	(622)
Cash flows from financing activities
Repayment of loans to affiliates	126	0
Payment on notes payable	(77)us-gaap_RepaymentsOfNotesPayable	(72)us-gaap_RepaymentsOfNotesPayable
Net cash provided by (used in) financing activities	49	(72)
Net increase (decrease) in cash and cash equivalents	112	(1,178)
Cash and cash equivalents at beginning of year	300	1,621
Cash and cash equivalents at end of year	412	443
Supplemental disclosures of cash flow information
Cash paid for interest on notes payable	$ 13us-gaap_InterestPaid	$ 17us-gaap_InterestPaid

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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The amount of cash paid for interest during the period.

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Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.

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Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.

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Carrying value as of the balance sheet date of obligations, including trade payables, incurred through that date and due within one year (or in the operating cycle if longer) arising from transactions not otherwise specified in the taxonomy.

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The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets.

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Cash outflows under financing arrangements with vendors (seller-financed debt), which had a maturity date at inception of more than one year (or more than one operating cycle, if longer); such debt may have arisen from purchases of property, plant and equipment or other productive assets.

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The cash outflow for a borrowing supported by a written promise to pay an obligation.

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