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Investment Securities (Details 1) - USD ($) $ in Thousands | Dec. 31, 2018 | Jun. 30, 2018
--- | --- | ---
Debt Securities, Available-for-sale [Line Items] |  |  |
Amortized Cost | $ 6,344 |  | $ 7,220
Gross Unrealized Gains | 219 |  | 276
Gross Unrealized (Losses) | 0 |  | 0
Estimated Fair Value | 6,563 |  | 7,496
Carrying value | 6,563 |  | 7,496
U.S. government agency MBS |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Amortized Cost | 3,824 |  | 4,234
Gross Unrealized Gains | 118 |  | 150
Gross Unrealized (Losses) | 0 |  | 0
Estimated Fair Value | 3,942 |  | 4,384
Carrying value | 3,942 |  | 4,384
U.S. government sponsored enterprise MBS |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Amortized Cost | 2,213 |  | 2,640
Gross Unrealized Gains | 98 |  | 122
Gross Unrealized (Losses) | 0 |  | 0
Estimated Fair Value | 2,311 |  | 2,762
Carrying value | 2,311 |  | 2,762
Private issue CMO |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Amortized Cost | 307 | [1] | 346
Gross Unrealized Gains | 3 | [1] | 4
Gross Unrealized (Losses) | 0 | [1] | 0
Estimated Fair Value | 310 | [1] | 350
Carrying value | $ 310 | [1] | $ 350
[1] | Collateralized Mortgage Obligations ("CMO").

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- Definition Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563 + Details
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