Organization and Summary of Significant Accounting Policies (Revenue Recognition) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Organization and Summary of Significant Accounting Policies [Abstract]
Gas Imbalance Asset	$ 1.9	$ 0.8
Gas Imbalance liability	$ 2.0	$ 1.7