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INVESTMENT SECURITIES (Schedule of Amortized Cost and Approximate Fair Value) (Details) - USD ($) $ in Thousands | Sep. 30, 2018 | Dec. 31, 2017
--- | --- | ---
Amortized Cost | $ 376,229 | $ 330,560
Gross Unrealized Gains | 303 | 752
Gross Unrealized Losses | (7,978) | (3,679)
Fair Value | 368,554 | 327,633
U.S. Government-Sponsored Entities [Member] |  |
Amortized Cost | 101,646 | 44,476
Gross Unrealized Gains | 3 |
Gross Unrealized Losses | (2,391) | (775)
Fair Value | 99,258 | 43,701
Mortgage-Backed Securities-Residential [Member] |  |
Amortized Cost | 249,011 | 244,913
Gross Unrealized Gains | 228 | 583
Gross Unrealized Losses | (5,343) | (2,380)
Fair Value | 243,896 | 243,116
SBA Pool Securities [Member] |  |
Amortized Cost | 4,229 | 5,262
Gross Unrealized Gains |  |
Gross Unrealized Losses | (47) | (57)
Fair Value | 4,182 | 5,205
State and Political Subdivisions [Member] |  |
Amortized Cost | 18,343 | 24,910
Gross Unrealized Gains | 27 | 87
Gross Unrealized Losses | (197) | (129)
Fair Value | 18,173 | 24,868
Corporate Bond [Member] |  |
Amortized Cost | 3,000 | 3,000
Gross Unrealized Gains | 45 | 82
Gross Unrealized Losses |  |
Fair Value | $ 3,045 | 3,082
Single-Issuer Trust Preferred Security [Member] |  |
Amortized Cost |  | 2,999
Gross Unrealized Gains |  |
Gross Unrealized Losses |  | (162)
Fair Value |  | 2,837
CRA Investment Fund [Member] |  |
Amortized Cost |  | 5,000
Gross Unrealized Gains |  |
Gross Unrealized Losses |  | (176)
Fair Value |  | $ 4,824

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