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Loans and Allowance for Loan Losses, Major Loan Segments and Classes (Details) $ in Thousands | 6 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Dec. 31, 2022 USD ($) Segment | Sep. 30, 2022 USD ($) | Jun. 30, 2022 USD ($) | Dec. 31, 2021 USD ($) | Sep. 30, 2021 USD ($) | Jun. 30, 2021 USD ($)
Major Loan Segments and Classes [Abstract] |  |  |  |  |  |
Total gross loans | $ 1,390,055 |  | $ 1,251,987 |  |  |
Allowance for loan losses | (22,289) | $ (22,147) | (22,761) | $ (21,684) | $ (20,493) | $ (19,668)
Deferred fees and cost, net | 100 |  | 129 |  |  |
Net loans receivable | $ 1,367,866 |  | 1,229,355 |  |  |
Number of segments within loan portfolio | Segment | 4 |  |  |  |  |
Residential Real Estate [Member] | Maximum [Member] |  |  |  |  |  |
Major Loan Segments and Classes [Abstract] |  |  |  |  |  |
Loan-to-value ratio | 85.00% |  |  |  |  |
Residential Real Estate [Member] | Residential Mortgage with Private Mortgage Insurance [Member] | Maximum [Member] |  |  |  |  |  |
Major Loan Segments and Classes [Abstract] |  |  |  |  |  |
Loan-to-value ratio | 85.00% |  |  |  |  |
Residential Real Estate [Member] | Real Estate [Member] |  |  |  |  |  |
Major Loan Segments and Classes [Abstract] |  |  |  |  |  |
Total gross loans | $ 371,646 |  | 360,824 |  |  |
Allowance for loan losses | (2,492) | (2,471) | (2,373) | (1,981) | (1,997) | (2,012)
Residential Real Estate [Member] | Construction and Land [Member] |  |  |  |  |  |
Major Loan Segments and Classes [Abstract] |  |  |  |  |  |
Total gross loans | 20,334 |  | 15,298 |  |  |
Allowance for loan losses | (193) | (177) | (141) | (115) | (120) | (106)
Residential Real Estate [Member] | Multi-family [Member] |  |  |  |  |  |
Major Loan Segments and Classes [Abstract] |  |  |  |  |  |
Total gross loans | 67,733 |  | 63,822 |  |  |
Allowance for loan losses | (167) | (159) | (119) | (76) | (100) | (186)
Commercial Real Estate [Member] | Real Estate [Member] |  |  |  |  |  |
Major Loan Segments and Classes [Abstract] |  |  |  |  |  |
Total gross loans | 705,649 |  | 595,635 |  |  |
Allowance for loan losses | (15,450) | (15,392) | (16,221) | (15,616) | (14,298) | (13,049)
Commercial Real Estate [Member] | Construction [Member] |  |  |  |  |  |
Major Loan Segments and Classes [Abstract] |  |  |  |  |  |
Total gross loans | 87,267 |  | 83,748 |  |  |
Allowance for loan losses | (1,100) | (1,044) | (1,114) | (1,250) | (1,198) | (1,535)
Consumer Loan [Member] | Home Equity [Member] |  |  |  |  |  |
Major Loan Segments and Classes [Abstract] |  |  |  |  |  |
Total gross loans | 20,669 |  | 17,877 |  |  |
Allowance for loan losses | (38) | (44) | (89) | (89) | (140) | (165)
Consumer Loan [Member] | Consumer Installment [Member] |  |  |  |  |  |
Major Loan Segments and Classes [Abstract] |  |  |  |  |  |
Total gross loans | 4,588 |  | 4,512 |  |  |
Allowance for loan losses | (284) | (274) | (349) | (280) | (290) | (267)
Commercial Loans [Member] |  |  |  |  |  |
Major Loan Segments and Classes [Abstract] |  |  |  |  |  |
Total gross loans | 112,169 |  | 110,271 |  |  |
Allowance for loan losses | $ (2,565) | $ (2,586) | $ (2,355) | $ (2,277) | $ (2,350) | $ (2,348)

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