Commitments and Contingencies - Leases (Details)		12 Months Ended
	Jul. 01, 2019 USD ($)	Jun. 30, 2022 USD ($) a	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)	Jan. 01, 2019 USD ($)
Lessee, Lease, Description [Line Items]
Lease, Practical Expedients, Package [true false]	true
Operating lease right of use asset		$ 7,350,000	$ 7,373,000
Operating lease term		99 years
Area of Land | a		4
Annual minimum rent		$ 288,000
Operating Lease Payments		288,000	288,000
Operating lease expense		$ 319,000	$ 316,000	$ 315,000
Weighted-average remaining lease term		70 years
Weighted-average discount rate		3.55%
Accounting Standards Update 2016-02
Lessee, Lease, Description [Line Items]
Lease, Practical Expedients, Package [true false]	true
Operating lease right of use asset	$ 7,700,000				$ 7,700,000
Operating lease liability	$ 7,700,000