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INVESTMENT SECURITIES AVAILABLE FOR SALE (Schedule of Amortized Cost and Approximate Fair Value of Securities Available for Sale) (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	$ 393,428	$ 389,424
Gross Unrealized Gains	7,710	2,511
Gross Unrealized Losses	(580)	(1,180)
Fair Value	400,558	390,755
U.S. Treasuries [Member]
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	2,912
Gross Unrealized Gains	6
Gross Unrealized Losses
Fair Value	2,918
U.S. Government-Sponsored Agencies [Member]
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	29,962	34,961
Gross Unrealized Gains	122	37
Gross Unrealized Losses		(214)
Fair Value	30,084	34,784
Mortgage-Backed Securities-Residential [Member]
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	344,814	337,489
Gross Unrealized Gains	7,459	2,365
Gross Unrealized Losses	(566)	(950)
Fair Value	351,707	338,904
SBA Pool Securities [Member]
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	2,565	2,799
Gross Unrealized Gains
Gross Unrealized Losses	(12)	(15)
Fair Value	2,553	2,784
State and Political Subdivisions [Member]
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	10,175	11,175
Gross Unrealized Gains	29	41
Gross Unrealized Losses	(2)	(1)
Fair Value	10,202	11,215
Corporate Bond [Member]
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	3,000	3,000
Gross Unrealized Gains	94	68
Gross Unrealized Losses
Fair Value	$ 3,094	$ 3,068

X

- 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).

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