Income Taxes - Tax Effects of Temporary Differences in Deferred Tax Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Jun. 30, 2017
Income Tax Disclosure [Abstract]
NOL carry forwards	$ 90,931	$ 134,476
Research and development credits	17,730	14,357
Property and equipment	0	3,406
Liability related to sale of future royalties	49,235	0
Other	3,489	7,335
Total	161,385	159,574
Valuation allowance	(160,540)	(159,574)
Net deferred assets	845	0
Property and equipment, DTL	(845)	0
Net deferred assets and liabilities	$ 0	$ 0

Deferred Income Tax Assets and Liabilities

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from deferred income.

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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 and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting.

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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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Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment.

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