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Investment Securities (Details) - Schedule of Gross Unrealized or Unrecognized Gains and Losses - USD ($) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2023 | Jun. 30, 2023
Agency mortgage-backed: residential [Member] |  |
Available-for-sale Securities |  |
Available-for-sale Securities, Amortized cost | $ 11,363 | $ 12,649
Available-for-sale Securities, Gross unrealized gains | 1 |
Available-for-sale Securities, Gross unrealized (losses) | 446 | 569
Available-for-sale Securities, Estimated fair value | 10,918 | 12,080
Held-to-maturity Securities |  |
Held-to-maturity Securities, Amortized cost | 234 | 274
Held-to-maturity Securities, Gross unrealized gains |  |
Held-to-maturity Securities, Gross unrealized (losses) | 11 | 15
Held-to-maturity Securities, Estimated fair value | 223 | 259
Total Temporarily Impaired AFS Securities [Member] |  |
Available-for-sale Securities |  |
Available-for-sale Securities, Amortized cost | 11,354 | 12,649
Available-for-sale Securities, Gross unrealized (losses) | (446) | 569
Available-for-sale Securities, Estimated fair value | 10,908 | 12,080
Total Temporarily Impaired HTM Securities [Member] |  |
Held-to-maturity Securities |  |
Held-to-maturity Securities, Amortized cost | 234 | 274
Held-to-maturity Securities, Gross unrealized (losses) | (11) | 15
Held-to-maturity Securities, Estimated fair value | 223 | 259
Less Than 12 Months [Member] | Mortgage-backed securities [Member] |  |
Available-for-sale Securities |  |
Available-for-sale Securities, Amortized cost |  | 12,649
Available-for-sale Securities, Gross unrealized (losses) |  | 569
Available-for-sale Securities, Estimated fair value |  | 12,080
Held-to-maturity Securities |  |
Held-to-maturity Securities, Amortized cost | 70 |
Held-to-maturity Securities, Gross unrealized (losses) | (1) |
Held-to-maturity Securities, Estimated fair value | 69 |
12 Months or More [Member] | Mortgage-backed securities [Member] |  |
Available-for-sale Securities |  |
Available-for-sale Securities, Amortized cost | 11,354 |
Available-for-sale Securities, Gross unrealized (losses) | (446) |
Available-for-sale Securities, Estimated fair value | 10,908 |
Held-to-maturity Securities |  |
Held-to-maturity Securities, Amortized cost | 164 | 274
Held-to-maturity Securities, Gross unrealized (losses) | (10) | 15
Held-to-maturity Securities, Estimated fair value | $ 154 | $ 259

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