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Loans and Allowance for Credit Losses - Association's Loan Portfolio Aging Analysis (Detail) - USD ($) $ in Thousands | Jun. 30, 2024 | Jun. 30, 2023
--- | --- | ---
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due | $ 1,863 | $ 981
Current | 644,526 | 593,343
Total loans | 646,389 | 594,324
Total Loans 90 Days Past Due & Accruing | 23 |
Commercial [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due | 150 | 153
Current | 199,867 | 193,554
Total loans | 200,017 | 193,707
Commercial [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due | 41 | 114
Current | 91,743 | 79,579
Total loans | 91,784 | 79,693
Consumer [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due | 51 | 55
Current | 7,676 | 8,327
Total loans | 7,727 | 8,382
Total Loans 90 Days Past Due & Accruing | 23 |
One- to four-family [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due | 1,201 | 639
Current | 176,062 | 163,215
Total loans | 177,263 | 163,854
Multi-family [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due | 141 |
Current | 125,890 | 89,649
Total loans | 126,031 | 89,649
Home equity lines of credit [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due | 42 | 20
Current | 9,817 | 8,046
Total loans | 9,859 | 8,066
Construction [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due | 237 |
Current | 33,471 | 50,973
Total loans | 33,708 | 50,973
Financing Receivables, 30 to 59 Days Past Due [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due | 1,452 | 779
Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due |  | 153
Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due | 21 | 56
Financing Receivables, 30 to 59 Days Past Due [Member] | Consumer [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due | 27 | 47
Financing Receivables, 30 to 59 Days Past Due [Member] | One- to four-family [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due | 1,009 | 523
Financing Receivables, 30 to 59 Days Past Due [Member] | Multi-family [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due | 141 |
Financing Receivables, 30 to 59 Days Past Due [Member] | Home equity lines of credit [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due | 17 |
Financing Receivables, 30 to 59 Days Past Due [Member] | Construction [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due | 237 |
Financing Receivables, 60 to 89 Days Past Due [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due | 238 | 142
Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due | 20 |
Financing Receivables, 60 to 89 Days Past Due [Member] | Consumer [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due | 1 | 6
Financing Receivables, 60 to 89 Days Past Due [Member] | One- to four-family [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due | 192 | 116
Financing Receivables, 60 to 89 Days Past Due [Member] | Home equity lines of credit [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due | 25 | 20
Financing Receivables, 90 Days or Greater [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due | 173 | 60
Financing Receivables, 90 Days or Greater [Member] | Commercial [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due | 150 |
Financing Receivables, 90 Days or Greater [Member] | Commercial [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due |  | 58
Financing Receivables, 90 Days or Greater [Member] | Consumer [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due | $ 23 | $ 2

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