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Fair Value Measurements - Fair value of Assets Measured on a Recurring Basis and Nonrecurring Basis (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Jun. 30, 2023
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US States and Political Subdivisions Debt Securities [Member] | Recurring Measurements |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale Securities | $ 41,197 | $ 42,568
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 1 | Recurring Measurements |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale Securities | 0 | 0
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 2 | Recurring Measurements |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale Securities | 41,197 | 42,568
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 3 | Recurring Measurements |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale Securities | 0 | 0
Corporate Segment [Member] | Recurring Measurements |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale Securities | 33,136 | 32,538
Corporate Segment [Member] | Fair Value, Inputs, Level 1 | Recurring Measurements |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale Securities | 0 | 0
Corporate Segment [Member] | Fair Value, Inputs, Level 2 | Recurring Measurements |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale Securities | 33,136 | 32,538
Corporate Segment [Member] | Fair Value, Inputs, Level 3 | Recurring Measurements |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale Securities | 0 | 0
Asset backed securities | Recurring Measurements |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale Securities | 67,642 | 68,626
Asset backed securities | Fair Value, Inputs, Level 1 | Recurring Measurements |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale Securities |  | 0
Asset backed securities | Fair Value, Inputs, Level 2 | Recurring Measurements |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale Securities | 67,642 | 68,626
Asset backed securities | Fair Value, Inputs, Level 3 | Recurring Measurements |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale Securities |  | 0
Other Debt Obligations [Member] | Recurring Measurements |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale Securities | 2,642 | 3,570
Other Debt Obligations [Member] | Fair Value, Inputs, Level 1 | Recurring Measurements |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale Securities | 0 | 0
Other Debt Obligations [Member] | Fair Value, Inputs, Level 2 | Recurring Measurements |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale Securities | 2,642 | 3,570
Other Debt Obligations [Member] | Fair Value, Inputs, Level 3 | Recurring Measurements |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale Securities | 0 | 0
Total MBS and CMOs | Recurring Measurements |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale Securities | 260,581 | 270,252
Total MBS and CMOs | Fair Value, Inputs, Level 1 | Recurring Measurements |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale Securities | 0 | 0
Total MBS and CMOs | Fair Value, Inputs, Level 2 | Recurring Measurements |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale Securities | 260,581 | 270,252
Total MBS and CMOs | Fair Value, Inputs, Level 3 | Recurring Measurements |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Available-for-sale Securities | 0 | 0
Foreclosed and repossessed assets held for sale | Nonrecurring Measurements |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Foreclosed and repossessed assets held for sale | 1,609 | 1,472
Foreclosed and repossessed assets held for sale | Fair Value, Inputs, Level 3 | Nonrecurring Measurements |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Foreclosed and repossessed assets held for sale | $ 1,609 | $ 1,472

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