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

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).

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)
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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).

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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

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-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 45
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