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OTHER COMPREHENSIVE INCOME (LOSS) - Balances and Changes in AOCI (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2019
Accumulated other comprehensive income (loss) |  |  |  |
Balance at beginning of period | $ 225,399 | $ 223,777 | $ 223,966 | $ 123,258
Balance at end of period | 227,408 | 227,982 | 227,408 | 227,982
Accumulated Other Comprehensive Loss |  |  |  |
Accumulated other comprehensive income (loss) |  |  |  |
Balance at beginning of period | (17,442) | (10,746) | (17,370) | (11,103)
Other comprehensive income (loss) before reclassifications | (14) | 47 | (86) | 288
Amounts reclassified from accumulated other comprehensive (loss) income |  |  |  | (38)
Reclassification for change in accounting principle |  | (38) |  | 116
Balance at end of period | (17,456) | (10,737) | (17,456) | (10,737)
Unrealized Gains/Losses on Securities |  |  |  |
Accumulated other comprehensive income (loss) |  |  |  |
Balance at beginning of period | 309 | 695 | 381 | 338
Other comprehensive income (loss) before reclassifications | (14) | 47 | (86) | 288
Amounts reclassified from accumulated other comprehensive (loss) income |  |  |  | (38)
Reclassification for change in accounting principle |  | (38) |  | 116
Balance at end of period | 295 | 704 | 295 | 704
Defined Benefit Plan |  |  |  |
Accumulated other comprehensive income (loss) |  |  |  |
Balance at beginning of period | (17,751) | (11,441) | (17,751) | (11,441)
Balance at end of period | $ (17,751) | $ (11,441) | $ (17,751) | $ (11,441)

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