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Securities (Tables) | 12 Months Ended
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Jun. 30, 2018
Securities [Abstract] |
Schedule of gross unrealized or unrecognized gains and losses |
|  |  | 2018 |
| (in thousands) |  | Amortized cost |  |  | Gross unrealized/ unrecognized gains |  |  | Gross unrealized/ unrecognized losses |  |  | Estimated fair value |
| Available-for-sale Securities |  |  |  |  |  |  |  |  |  |  |  |
| Agency mortgage-backed:residential |  | $ | 48 |  |  | $ | - |  |  | $ | - |  |  | $ | 48 |
| Held-to-maturity Securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Agency mortgage-backed: residential |  | $ | 1,002 |  |  | $ | 19 |  |  | $ | 23 |  |  | $ | 998 |
|  |  | 2017 |
| (in thousands) |  | Amortized cost |  |  | Gross unrealized/ unrecognized gains |  |  | Gross unrealized/ unrecognized losses |  |  | Estimated fair value |
| Available-for-sale Securities |  |  |  |  |  |  |  |  |  |  |  |
| Agency mortgage-backed:residential |  | $ | 70 |  |  | $ | 1 |  |  | $ | - |  |  | $ | 71 |
| Held-to-maturity Securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Agency mortgage-backed: residential |  | $ | 1.487 |  |  | $ | 45 |  |  | $ | 9 |  |  | $ | 1.523 |

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