Discontinued Operations - Discontinued Oil and Gas Operations, Assets and Liabilities, Revenue and Net Income (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Current Assets:
Accounts receivable, net	$ 6
Total Current Assets	6
Total Assets of Discontinued Operations	6
Current Liabilities:
Trade payables	29	3
Revenues and royalties payable	18	17
Accrued liabilities and other	113	227
Total Current Liabilities	160	247
Total Liabilities of Discontinued Operations	160	247
Loss from discontinued operations before taxes	$ (471)	$ (467)