Accrued Liabilities and Other (Details) - USD ($)	Sep. 30, 2018	Jun. 30, 2018
Other Liabilities, Current [Abstract]
Accrued incentive and other compensation	$ 126,591	$ 415,182
Accrued severance payments	60,867	160,089
Asset retirement obligations due within one year	35,539	35,539
Accrued royalties, including suspended accounts	11,498	11,498
Accrued franchise taxes	49,500	162,805
Accrued ad valorem taxes	134,658	89,773
Accrued liabilities and other	$ 418,653	$ 874,886

Carrying value as of the balance sheet date of obligations incurred and payable for real and property taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for royalties. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of the obligations incurred through that date and payable for employees' services provided.

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Current portion of the carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.

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Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits.

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Amount of liabilities classified as other, due within one year or the normal operating cycle, if longer.

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Carrying value as of the balance sheet date of liabilities incurred through that date and payable for statutory sales and use taxes, including value added tax.

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