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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	Sep. 30, 2020	Dec. 31, 2019
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	$ 588,797	$ 389,424
Gross Unrealized Gains	9,347	2,511
Gross Unrealized Losses	(1,215)	(1,180)
Fair Value	596,929	390,755
U.S. Treasuries [Member]
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	2,886
Gross Unrealized Gains	2
Gross Unrealized Losses	0
Fair Value	2,888
U.S. Government-Sponsored Agencies [Member]
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	79,424	34,961
Gross Unrealized Gains	62	37
Gross Unrealized Losses	(540)	(214)
Fair Value	78,946	34,784
Mortgage-Backed Securities-Residential [Member]
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	457,597	337,489
Gross Unrealized Gains	9,114	2,365
Gross Unrealized Losses	(416)	(950)
Fair Value	466,295	338,904
SBA Pool Securities [Member]
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	37,312	2,799
Gross Unrealized Gains	17	0
Gross Unrealized Losses	(259)	(15)
Fair Value	37,070	2,784
State and Political Subdivisions [Member]
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	8,578	11,175
Gross Unrealized Gains	116	41
Gross Unrealized Losses	0	(1)
Fair Value	8,694	11,215
Corporate Bond [Member]
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	3,000	3,000
Gross Unrealized Gains	36	68
Gross Unrealized Losses	0	0
Fair Value	$ 3,036	$ 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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