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Available for Sale Securities (Details) - USD ($) $ in Thousands | Jun. 30, 2019 | Dec. 31, 2018
--- | --- | ---
Debt Securities, Available-for-sale [Line Items] |  |  |
Amortized Cost |  | $ 111,413 | $ 104,573
Gross Unrealized Gains |  | 688 | 12
Gross Unrealized Losses |  | (703) | (3,273)
Fair Value |  | 111,398 | 101,312
U.S. Treasury securities |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Amortized Cost |  | 0 | 3,036
Gross Unrealized Gains |  | 0 | 0
Gross Unrealized Losses |  | 0 | (65)
Fair Value |  | 0 | 2,971
U.S. government agency mortgage-backed securities-residential |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Amortized Cost |  | 89,707 | 82,965
Gross Unrealized Gains |  | 592 | 8
Gross Unrealized Losses |  | (586) | (2,757)
Fair Value |  | 89,713 | 80,216
U.S. government agency securities |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Amortized Cost |  | 19,935 | 16,919
Gross Unrealized Gains |  | 29 | 0
Gross Unrealized Losses |  | (117) | (451)
Fair Value |  | 19,847 | 16,468
Municipal securities |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Amortized Cost | [1] | 1,229 | 1,228
Gross Unrealized Gains | [1] | 18 | 4
Gross Unrealized Losses | [1] | 0 | 0
Fair Value | [1] | 1,247 | 1,232
Other |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Amortized Cost |  | 542 | 425
Gross Unrealized Gains |  | 49 | 0
Gross Unrealized Losses |  | 0 | 0
Fair Value |  | $ 591 | $ 425
[1] | The issuers of municipal securities are all within New York State.

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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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- Definition Amount, before tax, of unrealized loss 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 (c) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563 + Details
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- Definition Amortized cost of 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://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563 + Details
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