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Note 8 - Discontinued Operations (Detail) - Discontinued Oil and Gas Operations, Assets and Liabilities (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Current Liabilities:
Trade payables	$ 3	$ 3
Revenues and royalties payable	18	17
Accrued liabilities and other	61	227
Total Current Liabilities	82	247
Total Liabilities of Discontinued Operations	$ 82	$ 247

Carrying value as of the balance sheet date of current obligations (due less than one year or one operating cycle, if longer) arising from the sale, disposal or planned sale in the near future (generally within one year) of a disposal group, including a component of the entity (discontinued operation).

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