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Regulatory Matters - Association's Actual Capital Amounts and Ratios (Detail) - Association [Member] $ in Thousands | Jun. 30, 2024 USD ($) | Jun. 30, 2023 USD ($)
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Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Actual, Community Bank Leverage Ratio, Amount | $ 86,672 | $ 84,222
Actual, Tier 1 capital (to adjusted total assets), Amount | 86,672 | 84,222
Actual, Tangible capital (to adjusted tangible assets), Amount | $ 86,672 | $ 84,222
Actual, Community Bank Leverage Ratio, Ratio | 0.0923 | 0.0951
Actual, Tier 1 capital (to adjusted total assets), Ratio | 9.23% | 9.51%
Actual, Tangible capital (to adjusted total assets), Ratio | 0.0923 | 0.0951
Minimum Capital Requirement, Community Bank Leverage Ratio, Amount | $ 84,484 | $ 79,726
Minimum Capital Requirement, Tier 1 capital (to adjusted total assets), Amount | 37,549 | 35,434
Minimum Capital Requirement, Tangible capital (to adjusted tangible assets), Amount | $ 14,081 | $ 13,288
Minimum Capital Requirement, Community Bank Leverage Ratio, Ratio | 0.09 | 0.09
Minimum Capital Requirement, Tier 1 capital (to adjusted total assets), Ratio | 4.00% | 4.00%
Minimum Capital Requirement, Tangible capital (to adjusted tangible assets), Ratio | 0.015 | 0.015
Minimum To Be Well Capitalised Under Prompt Corrective Action Provisions, Community Bank Leverage Ratio, Amount | $ 84,484 | $ 79,726
Minimum to Be Well Capitalized Under Prompt Corrective Action Provisions, Tier 1 capital (to adjusted total assets), Amount | $ 46,936 | $ 44,292
Minimum To Be Well Capitalised Under Prompt Corrective Action Provisions, Community Bank Leverage Ratio, Ratio | 0.09 | 0.09
Minimum to Be Well Capitalized Under Prompt Corrective Action Provisions, Tier 1 capital (to adjusted total assets), Ratio | 5.00% | 5.00%

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