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Investment Securities (Details) - USD ($) $ in Thousands | Sep. 30, 2019 | Dec. 31, 2018
--- | --- | ---
Investment securities available-for-sale |  |
Amortized Cost | $ 274,596 | $ 254,982
Unrealized Gains | 4,386 | 406
Unrealized Losses | (266) | (5,214)
Fair Value | 278,716 | 250,174
U.S. treasury and government agencies |  |
Investment securities available-for-sale |  |
Amortized Cost | 21,607 | 19,364
Unrealized Gains | 29 |
Unrealized Losses | (34) | (222)
Fair Value | 21,602 | 19,142
Obligations of state and political agencies |  |
Investment securities available-for-sale |  |
Amortized Cost | 47,227 | 67,662
Unrealized Gains | 703 | 171
Unrealized Losses | (74) | (1,446)
Fair Value | 47,856 | 66,387
Mortgage backed securities - Residential Agency |  |
Investment securities available-for-sale |  |
Amortized Cost | 165,995 | 129,906
Unrealized Gains | 3,467 | 210
Unrealized Losses | (125) | (3,118)
Fair Value | 169,337 | 126,998
Mortgage backed securities - Commercial |  |
Investment securities available-for-sale |  |
Amortized Cost | 32,546 | 29,050
Unrealized Gains | 139 | 20
Unrealized Losses | (33) | (303)
Fair Value | 32,652 | 28,767
Asset backed securities |  |
Investment securities available-for-sale |  |
Amortized Cost | 152 | 398
Unrealized Gains | 5 | 5
Unrealized Losses |  | (4)
Fair Value | 157 | 399
Corporate bonds |  |
Investment securities available-for-sale |  |
Amortized Cost | 7,069 | 8,602
Unrealized Gains | 43 |
Unrealized Losses |  | (121)
Fair Value | $ 7,112 | $ 8,481

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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=118939692&loc=d3e27161-111563 + Details
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