Income Tax Provision - Components of Deferred Tax Assets and Liabilities (Details) - USD ($)	Jun. 30, 2020	Jun. 30, 2019
Income Tax Provision
Net operating loss	$ 24,301,203	$ 22,191,536
Research and development credit	6,998,172	6,980,633
Other	3,790,537	4,985,538
Total gross deferred tax assets	35,089,911	34,157,707
Less: valuation allowance	(35,089,911)	(34,157,707)
Net deferred tax asset	$ 0	$ 0

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

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Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards.

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Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences, classified as other.

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Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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