Income Taxes - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Tax Credit Carryforward
Effective Income Tax Rate Reconciliation, Impact of Tax Accounting Method Change	$ 6,433	$ 0	$ 0
Unrecognized Tax Benefits	2,106	5,380	$ 3,931	$ 3,921
Deferred tax asset valuation allowance
Deferred tax asset valuation allowance	(6,205)	$ (4,866)
Unrecognized tax benefits that if recognized would reduce the effective tax rate	1,900
Accrued interest	300
Accrued penalties related to uncertain tax positions	100
Benefit for interest and penalties	300
Foreign
Tax Credit Carryforward
Net operating loss carryforwards	1,200
Research and development tax credit carryforward | State and Local Jurisdiction [Member]
Tax Credit Carryforward
Tax credit carryforward	4,800
Research and development tax credit carryforward | State and Local Jurisdiction [Member]
Tax Credit Carryforward
Tax credit carryforward	5,400
Tax Year 2019 [Member]
Tax Credit Carryforward
Effective Income Tax Rate Reconciliation, Impact of Tax Accounting Method Change	$ 6,400