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Loans and Allowance for Loan Losses - Credit Risk Profile of Association's Loan Portfolio Based on Risk Rating Category and Year of Origination (Detail) - USD ($) $ in Thousands | Dec. 31, 2022 | Jun. 30, 2022
--- | --- | ---
Financing Receivable, Recorded Investment [Line Items] |  |
2022 | $ 207,671 |
2021 | 105,960 |
2020 | 89,893 |
2019 | 32,040 |
2018 | 38,339 |
Prior Years | 94,337 |
Total loans | 568,240 | $ 525,736
Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2022 | 207,664 |
2021 | 105,857 |
2020 | 87,776 |
2019 | 31,318 |
2018 | 34,796 |
Prior Years | 92,355 |
Total loans | 559,766 | 513,804
Special Mention [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2020 | 30 |
2018 | 343 |
Total loans | 373 |
Substandard [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2022 | 7 |
2021 | 103 |
2020 | 2,087 |
2019 | 722 |
2018 | 3,200 |
Prior Years | 1,982 |
Total loans | 8,101 | 11,932
One- to four-family [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2022 | 56,946 |
2021 | 31,221 |
2020 | 19,096 |
2019 | 6,748 |
2018 | 9,399 |
Prior Years | 27,301 |
Total loans | 150,711 | 132,474
One- to four-family [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2022 | 56,939 |
2021 | 31,118 |
2020 | 19,034 |
2019 | 6,418 |
2018 | 9,056 |
Prior Years | 27,276 |
Total loans | 149,841 | 130,950
One- to four-family [Member] | Special Mention [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2018 | 343 |
Total loans | 343 |
One- to four-family [Member] | Substandard [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2022 | 7 |
2021 | 103 |
2020 | 62 |
2019 | 330 |
2018 | 0 |
Prior Years | 25 |
Total loans | 527 | 1,524
Multi-family [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2022 | 38,276 |
2021 | 10,879 |
2020 | 14,848 |
2019 | 9,257 |
2018 | 3,233 |
Prior Years | 23,654 |
Total loans | 100,147 | 88,247
Multi-family [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2022 | 38,276 |
2021 | 10,879 |
2020 | 14,848 |
2019 | 9,008 |
2018 | 3,233 |
Prior Years | 23,654 |
Total loans | 99,898 | 87,993
Multi-family [Member] | Substandard [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2019 | 249 |
Total loans | 249 | 254
Home equity lines of credit [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2022 | 2,215 |
2021 | 1,378 |
2020 | 842 |
2019 | 834 |
2018 | 540 |
Prior Years | 1,117 |
Total loans | 6,926 | 6,987
Home equity lines of credit [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2022 | 2,215 |
2021 | 1,378 |
2020 | 842 |
2019 | 834 |
2018 | 540 |
Prior Years | 1,117 |
Total loans | 6,926 | 6,987
Construction [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2022 | 19,491 |
2021 | 10,351 |
2020 | 6,753 |
Total loans | 36,595 | 41,254
Construction [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2022 | 19,491 |
2021 | 10,351 |
2020 | 6,753 |
Total loans | 36,595 | 41,254
Commercial [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2022 | 66,609 |
2021 | 31,172 |
2020 | 33,927 |
2019 | 6,147 |
2018 | 19,839 |
Prior Years | 34,321 |
Total loans | 192,015 | 167,375
Commercial [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2022 | 66,609 |
2021 | 31,172 |
2020 | 33,044 |
2019 | 6,064 |
2018 | 19,839 |
Prior Years | 32,368 |
Total loans | 189,096 | 164,424
Commercial [Member] | Substandard [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2020 | 883 |
2019 | 83 |
Prior Years | 1,953 |
Total loans | 2,919 | 2,951
Commercial [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2022 | 18,779 |
2021 | 18,672 |
2020 | 13,182 |
2019 | 8,645 |
2018 | 5,184 |
Prior Years | 7,898 |
Total loans | 72,360 | 80,418
Commercial [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2022 | 18,779 |
2021 | 18,672 |
2020 | 12,010 |
2019 | 8,585 |
2018 | 1,992 |
Prior Years | 7,894 |
Total loans | 67,932 | 73,226
Commercial [Member] | Special Mention [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2020 | 30 |
Total loans | 30 |
Commercial [Member] | Substandard [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2020 | 1,142 |
2019 | 60 |
2018 | 3,192 |
Prior Years | 4 |
Total loans | 4,398 | 7,192
Consumer [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2022 | 5,355 |
2021 | 2,287 |
2020 | 1,245 |
2019 | 409 |
2018 | 144 |
Prior Years | 46 |
Total loans | 9,486 | 8,981
Consumer [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2022 | 5,355 |
2021 | 2,287 |
2020 | 1,245 |
2019 | 409 |
2018 | 136 |
Prior Years | 46 |
Total loans | 9,478 | 8,970
Consumer [Member] | Substandard [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
2018 | 8 |
Total loans | $ 8 | $ 11

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