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Benefit Plans - Schedule of Net Funded Status (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2022
Change in benefit obligation: |  |  |
Service cost | $ 77 | $ 281 | $ 547
Interest cost | 369 | 369 | 279
Atlas Bank Retirement Income Plan ("ABRIP") |  |  |
Change in benefit obligation: |  |  |
Projected benefit obligation - beginning | 1,700 | 1,816 |
Interest cost | 81 | 78 | 62
Actuarial gain | (51) | (46) |
Benefit payments | (160) | (148) |
Projected benefit obligation - ending | 1,570 | 1,700 | 1,816
Change in plan assets: |  |  |
Fair value of assets - beginning | 2,717 | 2,907 |
Actual return on assets | 92 | (42) |
Premiums/claims paid | (160) | (148) |
Fair value of assets - ending | 2,649 | 2,717 | 2,907
Reconciliation of funded status: |  |  |
Projected benefit obligation | (1,570) | (1,700) | (1,816)
Fair value of assets | 2,649 | 2,717 | 2,907
Funded status included in other assets / liabilities | 1,079 | 1,017 |
Accumulated benefit obligation | $ (1,570) | $ (1,700) |
Valuation assumptions |  |  |
Discount rate | 5.50% | 5.00% |
Benefit Equalization Plan ("BEP") |  |  |
Change in benefit obligation: |  |  |
Projected benefit obligation - beginning | $ 2,425 | $ 2,592 |
Interest cost | 115 | 111 | 86
Actuarial gain | (40) | (34) |
Benefit payments | (246) | (244) | (241)
Projected benefit obligation - ending | 2,254 | 2,425 | 2,592
Change in plan assets: |  |  |
Fair value of assets - beginning | 0 | 0 |
Contributions | 246 | 244 | 241
Premiums/claims paid | (246) | (244) |
Fair value of assets - ending | 0 | 0 | 0
Reconciliation of funded status: |  |  |
Projected benefit obligation | (2,254) | (2,425) | (2,592)
Fair value of assets | 0 | 0 | 0
Funded status included in other assets / liabilities | (2,254) | (2,425) |
Accumulated benefit obligation | $ (2,254) | $ (2,425) |
Valuation assumptions |  |  |
Discount rate | 5.50% | 5.00% |
Postretirement Welfare Plan |  |  |
Change in benefit obligation: |  |  |
Projected benefit obligation - beginning | $ 1,036 | $ 1,085 |
Service cost | 79 | 95 | 116
Interest cost | 50 | 48 | 33
Actuarial gain | (90) | (214) |
Benefit payments | (13) | (13) | (12)
Plan amendments | 0 | 35 |
Projected benefit obligation - ending | 1,062 | 1,036 | 1,085
Change in plan assets: |  |  |
Fair value of assets - beginning | 0 | 0 |
Contributions | 13 | 13 | 12
Premiums/claims paid | (13) | (13) |
Fair value of assets - ending | 0 | 0 | 0
Reconciliation of funded status: |  |  |
Projected benefit obligation | (1,062) | (1,036) | (1,085)
Fair value of assets | 0 | 0 | 0
Funded status included in other assets / liabilities | $ (1,062) | $ (1,036) |
Valuation assumptions |  |  |
Discount rate | 5.50% | 5.00% |
Salary increase rate | 3.25% | 3.25% |
Directors' Consultation and Retirement Plan ("DCRP") |  |  |
Change in benefit obligation: |  |  |
Projected benefit obligation - beginning | $ 2,520 | $ 2,646 |
Interest cost | 124 | 117 | 92
Actuarial gain | (181) | (194) |
Benefit payments | (49) | (49) |
Projected benefit obligation - ending | 2,414 | 2,520 | 2,646
Change in plan assets: |  |  |
Fair value of assets - beginning | 0 | 0 |
Contributions | 49 | 49 | 49
Premiums/claims paid | (49) | (49) |
Fair value of assets - ending | 0 | 0 | 0
Reconciliation of funded status: |  |  |
Projected benefit obligation | (2,414) | (2,520) | (2,646)
Fair value of assets | 0 | 0 | 0
Funded status included in other assets / liabilities | (2,414) | (2,520) |
Accumulated benefit obligation | $ (2,414) | $ (2,520) |
Valuation assumptions |  |  |
Discount rate | 5.50% | 5.00% |
Supplemental Executive Retirement Plan (SERP) |  |  |
Change in benefit obligation: |  |  |
Projected benefit obligation - beginning | $ 633 | $ 437 |
Service cost | 0 | 185 |
Interest cost | 0 | 11 |
Projected benefit obligation - ending | 633 | 633 | 437
Change in plan assets: |  |  |
Fair value of assets - beginning | 0 |  |
Fair value of assets - ending | 0 | 0 |
Reconciliation of funded status: |  |  |
Projected benefit obligation | (633) | (633) | $ (437)
Fair value of assets | 0 | 0 |
Funded status included in other assets / liabilities | $ (633) | $ (633) |
Valuation assumptions |  |  |
Discount rate | 0.00% | 3.00% |

X
- Definition Amount of actuarial present value of benefits attributed to employee service rendered, excluding assumptions about future compensation level. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 + Details
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- Definition Amount of increase (decrease) in plan assets of defined benefit plan from actual return (loss) determined by change in fair value of plan assets adjusted for contributions, benefit payments, and other expenses. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 17 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480482/715-20-55-17 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 + Details
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- Definition Amount of gain (loss) from change in actuarial assumptions which (increases) decreases benefit obligation of defined benefit plan. Assumptions include, but are not limited to, interest, mortality, employee turnover, salary, and temporary deviation from substantive plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a)(4) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 + Details
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- Definition Amount of payment to participant of defined benefit plan which decreases benefit obligation. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 60 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480266/715-60-50-4 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a)(6) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 + Details
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