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Regulatory Matters - Association's Actual Capital Amounts and Ratios (Detail) - Association [Member] $ in Thousands | Jun. 30, 2022 USD ($) | Jun. 30, 2021 USD ($)
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Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Actual, Community Bank Leverage Ratio, Amount | $ 81,143 | $ 78,539
Actual, Tier 1 capital (to adjusted total assets), Amount | 81,143 | 78,539
Actual, Tangible capital (to adjusted tangible assets), Amount | $ 81,143 | $ 78,539
Actual, Community Bank Leverage Ratio, Ratio | 0.0978 | 0.1048
Actual, Tier 1 capital (to adjusted total assets), Ratio | 9.78% | 10.48%
Actual, Tangible capital (to adjusted total assets), Ratio | 0.0978 | 0.1048
Minimum Capital Requirement, Community Bank Leverage Ratio, Amount | $ 74,703 | $ 63,685
Minimum Capital Requirement, Tier 1 capital (to adjusted total assets), Amount | 33,201 | 29,970
Minimum Capital Requirement, Tangible capital (to adjusted tangible assets), Amount | $ 12,450 | $ 11,239
Minimum Capital Requirement, Community Bank Leverage Ratio, Ratio | 0.09 | 0.085
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 | $ 74,703 | $ 63,685
Minimum to Be Well Capitalized Under Prompt Corrective Action Provisions, Tier 1 capital (to adjusted total assets), Amount | $ 41,502 | $ 37,462
Minimum To Be Well Capitalised Under Prompt Corrective Action Provisions, Community Bank Leverage Ratio, Ratio | 0.09 | 0.085
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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