Income Taxes	3 Months Ended
Sep. 30, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes We file a consolidated federal income tax return in the United States and various combined and separate filings in several state and local jurisdictions. There were neither unrecognized tax benefits nor any accrued interest or penalties associated with unrecognized tax benefits during any periods presented in the financial statements. We believe we have appropriate support for the income tax positions taken and to be taken on our tax returns and that the accruals for tax liabilities are adequate for all open years based on our assessment of various factors including past experience and interpretations of tax law applied to the facts of each matter. The Company’s federal and state income tax returns are open to audit under the statute of limitations for the years ended June 30, 2015 through June 30, 2017 for federal tax purposes and for the years ended June 30, 2014 through June 30, 2017 for state tax purposes. To the extent we utilize net operating losses generated in earlier years, such earlier years may also be subject to audit. We recognized income tax expense of $1,316,352 and $390,322 for the three months ended September 30, 2018 and 2017, respectively, with corresponding effective tax rates of 19% and 15%. Our effective tax rate will typically differ from the statutory federal rate as a result of state income taxes, primarily in the State of Louisiana, and differences related to percentage depletion in excess of basis, stock-based compensation and other permanent differences. The effective tax rate increased 4% primarily due to the reduced amount of statutory depletion carryover available, partially offset by a 13% reduction in the federal statutory tax rate from 34% to 21% as a result of the Tax Cut and Jobs Act enacted in December 2017.

Income Taxes

We file a consolidated federal income tax return in the United States and various combined and separate filings in several state and local jurisdictions.

There were neither unrecognized tax benefits nor any accrued interest or penalties associated with unrecognized tax benefits during any periods presented in the financial statements. We believe we have appropriate support for the income tax positions taken and to be taken on our tax returns and that the accruals for tax liabilities are adequate for all open years based on our assessment of various factors including past experience and interpretations of tax law applied to the facts of each matter. The Company’s federal and state income tax returns are open to audit under the statute of limitations for the years ended June 30, 2015 through June 30, 2017 for federal tax purposes and for the years ended June 30, 2014 through June 30, 2017 for state tax purposes. To the extent we utilize net operating losses generated in earlier years, such earlier years may also be subject to audit.

We recognized income tax expense of $1,316,352 and $390,322 for the three months ended September 30, 2018 and 2017, respectively, with corresponding effective tax rates of 19% and 15%. Our effective tax rate will typically differ from the statutory federal rate as a result of state income taxes, primarily in the State of Louisiana, and differences related to percentage depletion in excess of basis, stock-based compensation and other permanent differences. The effective tax rate increased 4% primarily due to the reduced amount of statutory depletion carryover available, partially offset by a 13% reduction in the federal statutory tax rate from 34% to 21% as a result of the Tax Cut and Jobs Act enacted in December 2017.