Supplementary Information on Oil And Gas Producing Activities (Unaudited) - Summary of Standardized Measure of Discontinued Future Net Cash Flows (Detail) - USD ($) |
Dec. 31, 2015 |
Dec. 31, 2014 |
|---|---|---|
| Extractive Industries [Abstract] | ||
| Future Cash Inflows | $ 88,813,496 | $ 330,073,018 |
| Future Production Costs | (62,318,720) | (142,451,499) |
| Future Development Costs | (1,908,925) | (7,852,451) |
| Future Income Tax Expense | (4,917,170) | (37,524,303) |
| Future Net Cash Flows | 19,668,681 | 142,244,765 |
| Discounted for Estimated Timing of Cash Flows | (9,853,817) | (75,150,765) |
| Standardized Measure of Discounted Future Net Cash Flows | $ 9,814,864 | $ 67,094,000 |