Deferred Revenue - Summary of Deferred Revenue (Detail) - USD ($)	Mar. 31, 2016	Dec. 31, 2015
Revenue Recognition [Abstract]
Deferred Oil Exploration Lease Revenue	$ 582,778	$ 885,822
Deferred Land Sale Revenue	7,152,509	12,656,773
Prepaid Rent	1,029,431	907,325
Other Deferred Revenue	286,791	274,690
Total Deferred Revenue	$ 9,051,509	$ 14,724,610