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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