Fair Value Measurements (Details) (USD $)	Dec. 31, 2012 Quoted Prices in Active Markets (Level 1) [Member]	Dec. 31, 2011 Quoted Prices in Active Markets (Level 1) [Member]	Dec. 31, 2012 Significant Other Observable Inputes (Level 2) [Member]	Dec. 31, 2011 Significant Other Observable Inputes (Level 2) [Member]	Dec. 31, 2012 Significant Unobservable Inputs (Level 3) [Member]	Dec. 31, 2011 Significant Unobservable Inputs (Level 3) [Member]	Aug. 19, 2010 Ten Percent Senior Notes [Member]	Dec. 31, 2012 Ten Percent Senior Notes [Member] Significant Other Observable Inputes (Level 2) [Member]	Dec. 31, 2011 Ten Percent Senior Notes [Member] Significant Other Observable Inputes (Level 2) [Member]
Net valuation of the Company's derivatives subject to fair value measurement on a recurring basis
Commodity Derivatives Fair Value	$ 0	$ 0	$ 597,000	$ 6,418,000	$ 0	$ 0
Estimated fair value of the Notes								155,300,000	151,500,000
Book value of notes							$ 150,000,000
Stated interest rate							10.00%