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NET LOANS RECEIVABLE - Balance in Allowance for Loan Losses and recorded Investment (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Sep. 30, 2023 | Jun. 30, 2023 | Dec. 31, 2022 | Sep. 30, 2022 | Jun. 30, 2022
--- | --- | --- | --- | --- | --- | ---
Allowance for loan losses: |  |  |  |  |  |
Related to loans individually evaluated for impairment | $ 332 |  |  |  |  |
Related to loans collectively evaluated for impairment | 21,030 |  |  |  |  |
Ending balance | 21,362 | $ 21,069 |  |  |  |
Related to loans individually evaluated for impairment |  |  | $ 792 |  |  |
Related to loans collectively evaluated for impairment |  |  | 21,677 |  |  |
Ending balance |  |  | 22,469 | $ 22,192 | $ 22,570 | $ 22,524
Loans: |  |  |  |  |  |
Individually evaluated for impairment | 9,381 |  |  |  |  |
Loans collectively evaluated for impairment | 1,275,768 |  |  |  |  |
Total | 1,285,149 |  |  |  |  |
Individually evaluated for impairment |  |  | 11,544 |  |  |
Loans collectively evaluated for impairment |  |  | 1,155,094 |  |  |
Total |  |  | 1,166,638 |  |  |
Commercial |  |  |  |  |  |
Allowance for loan losses: |  |  |  |  |  |
Related to loans individually evaluated for impairment | 332 |  |  |  |  |
Related to loans collectively evaluated for impairment | 12,342 |  |  |  |  |
Ending balance | 12,674 | 13,181 |  |  |  |
Related to loans individually evaluated for impairment |  |  | 792 |  |  |
Related to loans collectively evaluated for impairment |  |  | 13,496 |  |  |
Ending balance |  |  | 14,288 | 15,703 | 17,053 | 17,818
Loans: |  |  |  |  |  |
Individually evaluated for impairment | 9,381 |  |  |  |  |
Loans collectively evaluated for impairment | 600,167 |  |  |  |  |
Total | 609,548 |  |  |  |  |
Individually evaluated for impairment |  |  | 11,544 |  |  |
Loans collectively evaluated for impairment |  |  | 589,642 |  |  |
Total |  |  | 601,186 |  |  |
Residential mortgages |  |  |  |  |  |
Allowance for loan losses: |  |  |  |  |  |
Related to loans collectively evaluated for impairment | 6,970 |  |  |  |  |
Ending balance | 6,970 | 6,191 |  |  |  |
Related to loans collectively evaluated for impairment |  |  | 6,222 |  |  |
Ending balance |  |  | 6,222 | 4,533 | 3,737 | 2,899
Loans: |  |  |  |  |  |
Loans collectively evaluated for impairment | 568,516 |  |  |  |  |
Total | 568,516 |  |  |  |  |
Loans collectively evaluated for impairment |  |  | 463,196 |  |  |
Total |  |  | 463,196 |  |  |
Home equity loans |  |  |  |  |  |
Allowance for loan losses: |  |  |  |  |  |
Related to loans collectively evaluated for impairment | 1,339 |  |  |  |  |
Ending balance | 1,339 | 1,282 |  |  |  |
Related to loans collectively evaluated for impairment |  |  | 1,470 |  |  |
Ending balance |  |  | 1,470 | 1,473 | 1,358 | 1,388
Loans: |  |  |  |  |  |
Loans collectively evaluated for impairment | 92,426 |  |  |  |  |
Total | 92,426 |  |  |  |  |
Loans collectively evaluated for impairment |  |  | 85,477 |  |  |
Total |  |  | 85,477 |  |  |
Consumer |  |  |  |  |  |
Allowance for loan losses: |  |  |  |  |  |
Related to loans collectively evaluated for impairment | 379 |  |  |  |  |
Ending balance | 379 | $ 415 |  |  |  |
Related to loans collectively evaluated for impairment |  |  | 489 |  |  |
Ending balance |  |  | 489 | $ 483 | $ 422 | $ 419
Loans: |  |  |  |  |  |
Loans collectively evaluated for impairment | 14,659 |  |  |  |  |
Total | $ 14,659 |  |  |  |  |
Loans collectively evaluated for impairment |  |  | 16,779 |  |  |
Total |  |  | $ 16,779 |  |  |

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