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Accrued Liabilities and Other - Schedule of Other Current Liabilities (Details) - USD ($)
Jun. 30, 2018
Jun. 30, 2017
Other Liabilities Disclosure [Abstract]    
Accrued incentive and other compensation $ 415,182 $ 413,113
Accrued severance (for two former employees) 160,089 0
Asset retirement obligations due within one year 35,539 35,115
Accrued royalties, including suspended accounts 11,498 17,708
Accrued franchise taxes 162,805 150,062
Accrued ad valorem taxes 89,773 108,641
Accrued liabilities and other $ 874,886 $ 724,639