Income Taxes - Reconciliation of Expected Federal Income Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Income Tax Disclosure [Abstract]
Federal tax benefit at statutory rate	$ (1,578)	$ (2,747)
State taxes net of federal impact	(358)	(459)
Permanent adjustments	32	33
Change in valuation allowance	(95,038)	(33,929)
Provision to return true-up	(61)	182
Deferred remeasurement	(196)
Net operating loss and credit expirations	99,071	36,724
Stock compensation adjustment	(53)	156
Other	(6)	84
Total tax expense	$ 1,813	$ 44