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Loans and Allowance for Credit Losses - Allowance for Credit Losses and Recorded Investment in Loans Based on Portfolio Segment and Impairment Method (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Jun. 30, 2023 | Jun. 30, 2022
Allowance for loan losses: |  |
Balance, beginning of year | $ 7,052 | $ 6,599
Impact of adopting ASU 2016-13 | 47 |
Provision for credit losses | 52 |
Provision charged to expense |  | 492
Losses charged off | (51) | (67)
Recoveries | 39 | 28
Balance, end of period | 7,139 | 7,052
Ending balance: individually evaluated for impairment |  | 0
Ending balance: collectively evaluated for impairment |  | 7,052
Loans: |  |
Ending balance | 594,324 | 525,736
Ending balance: individually evaluated for impairment |  | 1,385
Ending balance: collectively evaluated for impairment |  | 524,351
One- to four-family [Member] |  |
Allowance for loan losses: |  |
Balance, beginning of year | 1,028 | 967
Impact of adopting ASU 2016-13 | 382 |
Provision for credit losses | 487 |
Provision charged to expense |  | 100
Losses charged off | 0 | (40)
Recoveries | 1 | 1
Balance, end of period | 1,898 | 1,028
Ending balance: individually evaluated for impairment |  | 0
Ending balance: collectively evaluated for impairment |  | 1,028
Loans: |  |
Ending balance | 163,854 | 132,474
Ending balance: individually evaluated for impairment |  | 1,350
Ending balance: collectively evaluated for impairment |  | 131,124
Multi-family [Member] |  |
Allowance for loan losses: |  |
Balance, beginning of year | 1,375 | 1,674
Impact of adopting ASU 2016-13 | (140) |
Provision for credit losses | (114) |
Provision charged to expense |  | (299)
Losses charged off | 0 | 0
Recoveries | 0 | 0
Balance, end of period | 1,121 | 1,375
Ending balance: individually evaluated for impairment |  | 0
Ending balance: collectively evaluated for impairment |  | 1,375
Loans: |  |
Ending balance | 89,649 | 88,247
Ending balance: individually evaluated for impairment |  | 0
Ending balance: collectively evaluated for impairment |  | 88,247
Home equity lines of credit [Member] |  |
Allowance for loan losses: |  |
Balance, beginning of year | 70 | 67
Impact of adopting ASU 2016-13 | 33 |
Provision for credit losses | 18 |
Provision charged to expense |  | 3
Losses charged off | 0 | 0
Recoveries | 0 | 0
Balance, end of period | 121 | 70
Ending balance: individually evaluated for impairment |  | 0
Ending balance: collectively evaluated for impairment |  | 70
Loans: |  |
Ending balance | 8,066 | 6,987
Ending balance: individually evaluated for impairment |  | 0
Ending balance: collectively evaluated for impairment |  | 6,987
Construction [Member] |  |
Allowance for loan losses: |  |
Balance, beginning of year | 489 | 258
Impact of adopting ASU 2016-13 | 192 |
Provision for credit losses | 84 |
Provision charged to expense |  | 231
Losses charged off | 0 | 0
Recoveries | 0 | 0
Balance, end of period | 765 | 489
Ending balance: individually evaluated for impairment |  | 0
Ending balance: collectively evaluated for impairment |  | 489
Loans: |  |
Ending balance | 50,973 | 41,254
Ending balance: individually evaluated for impairment |  | 0
Ending balance: collectively evaluated for impairment |  | 41,254
Commercial [Member] |  |
Allowance for loan losses: |  |
Balance, beginning of year | 1,985 | 1,831
Impact of adopting ASU 2016-13 | 385 |
Provision for credit losses | (1) |
Provision charged to expense |  | 154
Losses charged off | 0 | 0
Recoveries | 0 | 0
Balance, end of period | 2,369 | 1,985
Ending balance: individually evaluated for impairment |  | 0
Ending balance: collectively evaluated for impairment |  | 1,985
Loans: |  |
Ending balance | 193,707 | 167,375
Ending balance: individually evaluated for impairment |  | 0
Ending balance: collectively evaluated for impairment |  | 167,375
Commercial [Member] |  |
Allowance for loan losses: |  |
Balance, beginning of year | 2,025 | 1,740
Impact of adopting ASU 2016-13 | (818) |
Provision for credit losses | (422) |
Provision charged to expense |  | 265
Losses charged off | (14) | 0
Recoveries | 23 | 20
Balance, end of period | 794 | 2,025
Ending balance: individually evaluated for impairment |  | 0
Ending balance: collectively evaluated for impairment |  | 2,025
Loans: |  |
Ending balance | 79,693 | 80,418
Ending balance: individually evaluated for impairment |  | 35
Ending balance: collectively evaluated for impairment |  | 80,383
Consumer [Member] |  |
Allowance for loan losses: |  |
Balance, beginning of year | 80 | 62
Impact of adopting ASU 2016-13 | 13 |
Provision for credit losses | 0 |
Provision charged to expense |  | 38
Losses charged off | (37) | (27)
Recoveries | 15 | 7
Balance, end of period | 71 | 80
Ending balance: individually evaluated for impairment |  | 0
Ending balance: collectively evaluated for impairment |  | 80
Loans: |  |
Ending balance | $ 8,382 | 8,981
Ending balance: individually evaluated for impairment |  | 0
Ending balance: collectively evaluated for impairment |  | $ 8,981

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