Discontinued Operations - Discontinued Oil and Gas Operations, Assets and Liabilities, Revenue and Net Income (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Current Assets:
Accounts receivable, net	$ 25		$ 25
Total Current Assets	25		25
Total Assets of Discontinued Operations	25		25
Current Liabilities:
Trade payables	42		42		3
Revenues and royalties payable	17		17		17
Accrued liabilities and other	50		50		227
Total Current Liabilities	109		109		247
Total Liabilities of Discontinued Operations	109		109		247
Loss from discontinued operations before taxes	$ (69)	$ (82)	$ (340)	$ (302)