Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Per Share data	Sep. 30, 2011	Dec. 31, 2010
ASSETS
Gas gathering assets, net of accumulated depreciation and amortization	$ 1,720	$ 1,496
Accumulated depreciation and amortization	$ 7,641	$ 6,435
Stockholders' equity:
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	5,000	5,000
Preferred stock, shares issued	1,495	1,495
Preferred stock, shares outstanding	1,495	1,495
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	150,000	150,000
Common stock, shares issued	62,071	62,071
Common stock, shares outstanding	61,565	61,565