Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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Income Taxes (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Operating Loss Carryforwards [Line Items]
Liability relating to unrecognized tax benefits	$ 1,191	$ 1,042	$ 711	$ 611
Federal
Operating Loss Carryforwards [Line Items]
Tax NOL carryforwards	327,997	299,928
Research and development credit carryforwards	7,658	5,632
State
Operating Loss Carryforwards [Line Items]
Research and development credit carryforwards	$ 2,845	$ 2,287