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INVESTMENT SECURITIES AVAILABLE FOR SALE (Schedule of Amortized Cost and Approximate Fair Value) (Details) - USD ($) $ in Thousands | Mar. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Schedule Of Available For Sale Securities [Line Items] |  |
Amortized Cost | $ 386,086 | $ 381,910
Gross Unrealized Gains | 1,077 | 639
Gross Unrealized Losses | (2,763) | (4,613)
Fair Value | 384,400 | 377,936
U.S. Government-Sponsored Entities [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Amortized Cost | 86,678 | 102,915
Gross Unrealized Gains | 85 | 82
Gross Unrealized Losses | (411) | (984)
Fair Value | 86,352 | 102,013
Mortgage-Backed Securities-Residential [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Amortized Cost | 275,641 | 254,383
Gross Unrealized Gains | 936 | 418
Gross Unrealized Losses | (2,246) | (3,439)
Fair Value | 274,331 | 251,362
SBA Pool Securities [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Amortized Cost | 3,644 | 3,883
Gross Unrealized Gains |  |
Gross Unrealized Losses | (43) | (44)
Fair Value | 3,601 | 3,839
State and Political Subdivisions [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Amortized Cost | 17,123 | 17,729
Gross Unrealized Gains | 37 | 27
Gross Unrealized Losses | (63) | (146)
Fair Value | 17,097 | 17,610
Corporate Bond [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Amortized Cost | 3,000 | 3,000
Gross Unrealized Gains | 19 | 112
Gross Unrealized Losses |  |
Fair Value | $ 3,019 | $ 3,112

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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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