Summary of Significant Accounting Policies (Details Textual) (USD $)	3 Months Ended			6 Months Ended		12 Months Ended				3 Months Ended	6 Months Ended	3 Months Ended		6 Months Ended			3 Months Ended
	Jun. 30, 2013	Mar. 31, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2012	Jun. 30, 2013 Stock Options [Member]	Jun. 30, 2013 Stock Options [Member]	Jun. 30, 2013 Restricted stock [Member]	Jun. 30, 2012 Restricted stock [Member]	Jun. 30, 2013 Restricted stock [Member]	Jun. 30, 2012 Restricted stock [Member]	Jun. 30, 2013 Class A [Member]	Mar. 31, 2012 Class B [Member]	Jun. 30, 2013 Class B [Member] Maximum [Member]	Jun. 30, 2013 Class B [Member] Minimum [Member]
Summary of Significant Accounting Policies (Textual) [Abstract]
Cumulative annual dividends per share rate																		$ 0.66	$ 0.26
Total dividend paid																	$ 96,356
Dividends paid				0	96,000											0
Initial public offering																1,030,700
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total options to purchase shares of the Company's common stock and restricted stock excluded from the calculations										1,293,568	1,293,568	139,963	231,683	139,963	231,683
Summary of Significant Accounting Policies (Additional Textual) [Abstract]
Capitalized general and administrative costs				1,400,000	1,100,000
Capitalized interest expense				800,000	600,000
Present value discounted percent of future net revenues of proved oil and natural gas reserves				10.00%
Average oil and natural gas prices						88.13	3.444	92.17	3.146
Net capitalized costs less related deferred income taxes exceeded the full-cost ceiling		13,700,000	21,300,000
Impairment charge of net capitalized costs	0	21,229,000	33,205,000	21,229,000	33,205,000
Deferred income tax credit		7,500,000	11,900,000
Dividends declared				$ 0	$ 27,643