Basis of Financial Statement Presentation and Significant Accounting Policies - Changes to Asset Retirement Obligations (Detail) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2012
Asset Retirement Obligation Roll Forward Analysis [Roll Forward]
Asset retirement obligations at beginning of period	$ 41,440	$ 416,322
Liabilities incurred during the period	11,372
Accretion expense	1,000	920
Liabilities held for sale		(388,005)	(388,005)
Asset retirement obligations at end of period	$ 53,812	$ 29,237