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Loans and Allowance for Credit Losses - Association's Loan Portfolio Aging Analysis (Detail) - USD ($) $ in Thousands | Jun. 30, 2025 | Jun. 30, 2024
--- | --- | ---
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due | $ 3,154 | $ 1,863
Current | 636,732 | 644,526
Total loans | 639,886 | 646,389
Total Loans 90 Days Past Due & Accruing | 29 | 23
Commercial [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due | 1,298 | 150
Current | 200,252 | 199,867
Total loans | 201,550 | 200,017
Commercial [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due | 556 | 41
Current | 93,405 | 91,743
Total loans | 93,961 | 91,784
Consumer [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due | 73 | 51
Current | 5,782 | 7,676
Total loans | 5,855 | 7,727
Total Loans 90 Days Past Due & Accruing |  | 23
One- to four-family [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due | 1,202 | 1,201
Current | 177,777 | 176,062
Total loans | 178,979 | 177,263
Total Loans 90 Days Past Due & Accruing | 29 |
Multi-family [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due | 25 | 141
Current | 126,102 | 125,890
Total loans | 126,127 | 126,031
Home equity lines of credit [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due |  | 42
Current | 10,487 | 9,817
Total loans | 10,487 | 9,859
Construction [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due |  | 237
Current | 22,927 | 33,471
Total loans | 22,927 | 33,708
Financing Receivables, 30 to 59 Days Past Due [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due | 2,252 | 1,452
Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due | 1,049 |
Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due | 256 | 21
Financing Receivables, 30 to 59 Days Past Due [Member] | Consumer [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due | 56 | 27
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 | 866 | 1,009
Financing Receivables, 30 to 59 Days Past Due [Member] | Multi-family [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due | 25 | 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 | 856 | 238
Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due | 249 |
Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due | 300 | 20
Financing Receivables, 60 to 89 Days Past Due [Member] | Consumer [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due |  | 1
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 | 307 | 192
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
Financing Receivables, 90 Days or Greater [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due | 46 | 173
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] | Consumer [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due | 17 | $ 23
Financing Receivables, 90 Days or Greater [Member] | One- to four-family [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total Past Due | $ 29 |

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