Organization and Summary of Significant Accounting Policies - Post Retirement Benefits (Details) - USD ($)	Jun. 30, 2026	Jun. 30, 2025
Organization and Summary of Significant Accounting Policies
Accrued liability, post retirement benefits	$ 702,000	$ 741,000

Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans, classified as current.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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