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Regulatory Matters - Association's Actual Capital Amounts and Ratios (Detail) - Association [Member] $ in Thousands | Jun. 30, 2021 USD ($) | Jun. 30, 2020 USD ($)
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Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Actual, Community Bank Leverage Ratio, Amount | $ 78,539 | $ 76,428
Actual, Tier I capital (to adjusted total assets), Amount | 78,539 | 76,428
Actual, Tangible capital (to adjusted total assets), Amount | $ 78,539 | $ 76,428
Actual, Community Bank Leverage Ratio, Ratio | 0.1048 | 0.1068
Actual, Tier I capital (to adjusted total assets), Ratio | 10.48% | 10.68%
Actual, Tangible capital (to adjusted total assets), Ratio | 0.1048 | 0.1068
Minimum Capital Requirement, Community Bank Leverage Ratio, Amount | $ 63,685 | $ 57,238
Minimum Capital Requirement, Tier I capital (to adjusted total assets), Amount | 29,970 | 28,619
Minimum Capital Requirement, Tangible capital (to adjusted total assets), Amount | $ 11,239 | $ 10,732
Minimum Capital Requirement, Community Bank Leverage Ratio, Ratio | 0.0850 | 0.0800
Minimum Capital Requirement, Tier I capital (to adjusted total assets), Ratio | 4.00% | 4.00%
Minimum Capital Requirement, Tangible capital (to adjusted total assets), Ratio | 0.0150 | 0.0150
Minimum To Be Well Capitalised Under Prompt Corrective Action Provisions, Community Bank Leverage Ratio, Amount | $ 63,685 | $ 57,238
Minimum to Be Well Capitalized Under Prompt Corrective Action Provisions, Tier I capital (to adjusted total assets), Amount | $ 37,462 | $ 35,774
Minimum To Be Well Capitalised Under Prompt Corrective Action Provisions, Community Bank Leverage Ratio, Ratio | 0.0850 | 0.0800
Minimum to Be Well Capitalized Under Prompt Corrective Action Provisions, Tier I capital (to adjusted total assets), Ratio | 5.00% | 5.00%

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