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Income Taxes - Narrative (Details) - USD ($) | 12 Months Ended |  |
--- | --- | --- | ---
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2013
Operating Loss Carryforwards [Line Items] |  |  |
Unrecognized tax benefits | $ 0 | $ 0 | $ 0
Statutory tax rate | 34.00% |  |
Tax loss carryforwards from exercise of options and warrants |  | $ 24,600,000 |
Approximate amount of carryforward depletion | $ 11,600,000 |  |
Maximum |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Percentage of carryforward depletion | 65.00% |  |
Federal |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Tax loss carryforwards | $ 25,800,000 |  |
Tax loss carryforward from reverse merger | 1,200,000 |  |
Carryforward from reverse merger | 300,000 |  |
Annual amount of carryforward from reverse merger through 2023 | 39,648 |  |
State |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Tax loss carryforwards | 24,200,000 |  |
Tax loss carryback | 19,000,000 |  |
Louisiana | State |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Tax loss carryforwards | 1,500,000 |  |
Tax Year 2015 | State |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Tax loss carryforwards | 3,800,000 |  |
Settlement with Taxing Authority | Louisiana | State |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Amount of tax refund requested | $ 1,500,000 |  |

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