The portion of the valuation allowance pertaining to the deferred tax asset representing potential future taxable deductions from net operating loss carryforwards for which it is more likely than not that a tax benefit will not be realized.

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Income Taxes - Deferred Tax Assets (Liabilties) (Details) - USD ($)	Jun. 30, 2018	Jun. 30, 2017
Income Tax Disclosure [Abstract]
Net operating loss carryforwards
Valuation allowance
Operating loss carryforwards