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Property and Equipment (Details) (USD $) | Dec. 31, 2013 | Jun. 30, 2013 | Dec. 31, 2012
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Property and Equipment |  |  |
Total property and equipment | $ 38,292,253 | $ 38,841,249 |
Oil and natural gas properties |  |  |
Property costs subject to amortization | 42,746,486 | 42,772,184 |
Less: Accumulated depreciation, depletion, and amortization | (8,760,874) | (8,095,856) |
Unproved properties not subject to amortization | 4,258,459 | 4,112,704 |
Other property and equipment |  |  |
Furniture, fixtures and office equipment, at cost | 332,151 | 322,514 |
Less: Accumulated depreciation | (283,969) | (270,297) |
Mississippi Lime - unevaluated acreage |  |  |
Oil and natural gas properties |  |  |
Unproved properties not subject to amortization | 4,200,000 | 4,100,000 |
Oil and natural gas properties |  |  |
Property and Equipment |  |  |
Total property and equipment | 38,244,071 | 38,789,032 |
Other property and equipment |  |  |
Impaired unproved properties | 0 |  | 0
Other Property and Equipment |  |  |
Property and Equipment |  |  |
Total property and equipment | $ 48,182 | $ 52,217 |

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