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Income Taxes (Details) - USD ($)
 3 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]    
Unrecognized tax benefits $ 0  
Accrued interest and penalties, unrecognized tax benefits 0  
Net loss for state tax purposes 19,100,000  
Income tax expense $ 1,754,969 $ 706,159
Income tax expense, effective rates (as a percent) 36.20% 38.50%
State    
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]    
Net loss for state tax purposes $ 24,200,000  
Louisiana | State    
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]    
Income tax refund 1,500,000  
Interest on refund recorded as a deduction of current income tax expense $ 57,467