Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Income Tax Expense Benefit Continuing Operations Income Tax Reconciliation
Expected benefit	$ 1,596	$ 1,746
Tax credits	187
Change in valuation allowance	(1,352)	2,961
Prior year true-up	26	(4,650)
Expiration of net operating loss carryovers	(533)
Other permanent items	76	(57)
Total income tax benefit	$ 0	$ 0