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Income Taxes - Additional Information (Details) - USD ($)	3 Months Ended		12 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Income taxes
Unrecognized, period increase (decrease)			$ (208,000)
Unrecognized interest, total	$ 63,000		63,000	$ 83,000	$ 0	$ 0
Unrecognized, future period	678,000		678,000
Provision for incremental Income tax liability			613,000
Undistributed earnings, foreign subsidiaries	60,400,000		$ 60,400,000
Tax Year 2017
Income taxes
Examination, interest expense	$ 68,000
Domestic Tax Authority \| Tax Year 2017
Income taxes
Penalties and interest expense		$ 399,000
State Jurisdiction \| Tax Year 2017
Income taxes
Penalties and interest expense		$ 97,000
Internal Revenue Service \| Domestic Tax Authority \| Tax Year 2016
Income taxes
Penalties and interest accrual				762,000
Internal Revenue Service \| State Jurisdiction \| Tax Year 2016
Income taxes
Penalties and interest accrual				$ 70,000