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Consolidated Statements of Comprehensive Income (Loss) (Parenthetical) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Statement of Comprehensive Income [Abstract]    
Unrealized appreciation (depreciation) on available-for-sale securities, tax $ (7,902) $ (907)
Reclassification adjustment for realized gains included in net income, Tax (78) 92
Change in postretirement health plan gains and losses, net of taxes $ 137 $ 94