Derivative Financial Instruments (Schedule of Derivative Instruments) (Details) (USD $)	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Unrealized loss on commodity swap contracts not designated as hedging instruments	$ 3,023,271		$ 0		$ 0
Deferred unrealized loss on commodity swap contracts	(2,872,386)	[1]	0	[1]	0	[1]
Unrealized loss included in Other income, net	$ 150,885		$ 0		$ 0

[1] Unrealized losses on commodity swap agreements incurred by the Company’s regulated subsidiaries have been deferred as a regulatory asset on the Company’s Consolidated Balance Sheet. See Note 11 - Regulatory Assets and Liabilities.