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Securities (Details) - USD ($) $ in Thousands | Jun. 30, 2018 | Jun. 30, 2017
--- | --- | ---
Available-for-sale Securities |  |
Available-for-sale Securities, Estimated fair value | $ 48 | $ 71
Held-to-maturity Securities |  |
Held-to-maturity Securities, Estimated fair value | 998 | 1,523
Agency mortgage-backed:residential [Member] |  |
Available-for-sale Securities |  |
Available-for-sale Securities, Amortized cost | 48 | 70
Available-for-sale Securities, Gross unrealized/ unrecognized gains |  | 1
Available-for-sale Securities, Gross unrealized/ unrecognized losses |  |
Available-for-sale Securities, Estimated fair value | 48 | 71
Held-to-maturity Securities |  |
Held-to-maturity Securities, Amortized cost | 1,002 | 1,487
Held-to-maturity Securities, Gross unrealized/ unrecognized gains | 19 | 45
Held-to-maturity Securities, Gross unrealized/ unrecognized losses | 23 | 9
Held-to-maturity Securities, Estimated fair value | $ 998 | $ 1,523

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