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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Amount of interest expense accrued for an underpayment of income taxes.

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Income Tax (Narrative) (Details) - USD ($)	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019
Valuation Allowance [Line Items]
Accrued interest related to uncertain tax positions	$ 0
Unrecognized tax benefit	$ 0	$ 0
Cell C [Member]
Valuation Allowance [Line Items]
Valuation allowance related to net operating losses			$ 3,600,000