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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Correction of Immaterial Error (Details) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Dec. 31, 2020 | Jun. 30, 2020 | Dec. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2019
Correction of an Immaterial Error |  |  |  |  |
Net gain on equity securities | $ 831,000 |  | $ 364,000 | $ 1,415,000 | $ 282,000
Income tax benefit | (554,000) |  | $ (985,000) | (857,000) | (387,000)
Retained earnings | (143,023,000) | $ (139,734,000) |  | (143,023,000) |
Accumulated other comprehensive loss | (17,456,000) | (17,370,000) |  | (17,456,000) |
Securities available for sale | (130,440,000) | (75,768,000) |  | (130,440,000) |
Equity securities | $ 2,472,000 | 8,533,000 |  | $ 2,472,000 |
Restatement Adjustment |  |  |  |  |
Correction of an Immaterial Error |  |  |  |  |
Income tax benefit |  |  |  |  | $ (4,093,000)
Restatement Adjustment | Error in Adoption of ASU 2016-01 |  |  |  |  |
Correction of an Immaterial Error |  |  |  |  |
Net gain on equity securities |  | 16,000 |  |  |
Income tax benefit |  | 4,000 |  |  |
Unrealized holding gains, net of tax, arising during the period |  | 12,000 |  |  |
Retained earnings |  | 702,000 |  |  |
Accumulated other comprehensive loss |  | 702,000 |  |  |
Securities available for sale |  | 5,100,000 |  |  |
Equity securities |  | $ 5,100,000 |  |  |

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