Sale of Oil and Gas Properties - Additional Information (Detail) (USD $)	0 Months Ended	1 Months Ended	12 Months Ended		0 Months Ended
	Dec. 13, 2013 acre	Jan. 31, 2013 Well Mcfe	Dec. 31, 2013	Dec. 31, 2012 Mcfe	Jan. 24, 2013 Non Core Assets [Member]
Oil and Gas Properties [Line Items]
Lease acres owned by Company, Net of curable and incurable title defects	1,114.8
Lease acres owned by Company ,Gross	4,650
Total lease acres excluded from sale due to incurable title defects	118.6
Total lease acres owned by company excluded from sale due to incurable title defects	39.8
Additional lease acres excluded from sale due to curable title defects	135.5
Additional lease acres owned by company excluded from sale due to curable title defects	30.7
Expected additional amount due and payable to Company	$ 200,000
Cash received	10,600,000
Total purchase price	36,300,000
Sale of interests in non-core assets			$ 11,451,244	$ 328,466	$ 2,625,000
Overriding royalty interest on most of the wells		2.50%
Number of wellbores operator assumed		300
Production of wells mcfe per day				800
Overriding royalty interest retained	5.00%