Fair Value of Financial Instruments - Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Jun. 30, 2023
Investments available for sale:
Equity securities	$ 1,850	$ 1,629
Fair value		165,127
Fair value	160,938
Mortgage-backed securities
Investments available for sale:
Fair value		106,756
Fair value	104,855
U.S. agency collateralized mortgage obligations
Investments available for sale:
Fair value		8,292
Fair value	7,881
U.S. government agency securities
Investments available for sale:
Fair value		3,932
Fair value	809
Municipal bonds
Investments available for sale:
Fair value		14,979
Fair value	15,226
Corporate bonds
Investments available for sale:
Fair value		31,168
Fair value	32,167
Recurring
Investments available for sale:
Equity securities	1,850	1,629
Fair value	162,788	166,756
Recurring \| Mortgage-backed securities
Investments available for sale:
Fair value		106,756
Fair value	104,855
Recurring \| U.S. agency collateralized mortgage obligations
Investments available for sale:
Fair value		8,292
Fair value	7,881
Recurring \| U.S. government agency securities
Investments available for sale:
Fair value		3,932
Fair value	809
Recurring \| Municipal bonds
Investments available for sale:
Fair value		14,979
Fair value	15,226
Recurring \| Corporate bonds
Investments available for sale:
Fair value		31,168
Fair value	32,167
Recurring \| Level 1
Investments available for sale:
Equity securities	1,850	1,629
Fair value	1,850	1,629
Recurring \| Level 2
Investments available for sale:
Fair value	160,938	165,127
Recurring \| Level 2 \| Mortgage-backed securities
Investments available for sale:
Fair value		106,756
Fair value	104,855
Recurring \| Level 2 \| U.S. agency collateralized mortgage obligations
Investments available for sale:
Fair value		8,292
Fair value	7,881
Recurring \| Level 2 \| U.S. government agency securities
Investments available for sale:
Fair value		3,932
Fair value	809
Recurring \| Level 2 \| Municipal bonds
Investments available for sale:
Fair value		14,979
Fair value	15,226
Recurring \| Level 2 \| Corporate bonds
Investments available for sale:
Fair value		$ 31,168
Fair value	$ 32,167

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