Income Taxes - Narrative (Details)	12 Months Ended
	Jun. 30, 2021 USD ($) Subsidiary	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)
Income Tax [Line Items]
Statutory federal income tax rate	21.00%
Deferred tax assets, valuation allowance	$ 13,900,000
Operating loss carryforward - Federal	153,600,000
Operating loss carryforward - State	$ 6,000,000.0
Number of subsidiaries filing income tax returns in the U.S. federal jurisdiction, and various state jurisdictions | Subsidiary	1
Unrecognized tax benefits that, if recognized, would affect the effective tax rate	$ 300,000
Interest paid, net of tax	0	$ 0	$ 0
Federal
Income Tax [Line Items]
Operating loss carryforward subject to expiration	70,200,000
Operating loss carryforward not subject to expiration	$ 83,400,000
Federal | Earliest Tax Year
Income Tax [Line Items]
Operating loss carryforward expiration year	2033
Federal | Latest Tax Year
Income Tax [Line Items]
Operating loss carryforward expiration year	2037
State and Local Jurisdiction | Earliest Tax Year
Income Tax [Line Items]
Operating loss carryforward expiration year	2021
State and Local Jurisdiction | Latest Tax Year
Income Tax [Line Items]
Operating loss carryforward expiration year	2041