Income Taxes - Carryforwards (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Unrecognized Tax Benefits
Unrecognized tax benefits	$ 0	$ 0	$ 0
Federal And State
Operating loss carryforwards
Net operating loss carryforwards with indefinite utilization periods	26,020
Federal
Operating loss carryforwards
Net operating loss carryforwards	55,801
Net operating loss carryforwards that will expire	$ 35,736
Federal | Minimum
Operating loss carryforwards
Expiration date for net operating losses	Jun. 30, 2034
Federal | Maximum
Operating loss carryforwards
Expiration date for net operating losses	Jun. 30, 2038
State
Operating loss carryforwards
Net operating loss carryforwards	$ 32,262
Net operating loss carryforwards that will expire	$ 26,307
State | Minimum
Operating loss carryforwards
Expiration date for net operating losses	Jun. 30, 2021
Unrecognized Tax Benefits
Statute of limitations on filings	3 years
State | Maximum
Operating loss carryforwards
Expiration date for net operating losses	Jun. 30, 2040
Unrecognized Tax Benefits
Statute of limitations on filings	4 years
Research and development and other | Federal And State
Tax credit carryforwards
Tax credit carryforwards	$ 16,714
Research and development and other | Federal And State | Minimum
Tax credit carryforwards
Expiration date for tax credit carryforwards	Jun. 30, 2021
Research and development and other | Federal And State | Maximum
Tax credit carryforwards
Expiration date for tax credit carryforwards	Jun. 30, 2040