INVESTMENT SECURITIES - Amortized Cost and Estimated Fair Value of Investment Securities Available for Sale (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 581,534	$ 572,887
Gross Unrealized Gains	2,923	19,929
Gross Unrealized Losses	(5,253)	(195)
Estimated Fair Value	579,204	592,621
U.S. government sponsored agencies
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	7,067	7,084
Gross Unrealized Gains	17	88
Gross Unrealized Losses	(12)	0
Estimated Fair Value	7,072	7,172
State, county and municipal securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	43,416	45,470
Gross Unrealized Gains	727	2,342
Gross Unrealized Losses	(299)	0
Estimated Fair Value	43,844	47,812
Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	27,897	27,897
Gross Unrealized Gains	431	719
Gross Unrealized Losses	(150)	(120)
Estimated Fair Value	28,178	28,496
SBA pool securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	37,863	44,312
Gross Unrealized Gains	15	958
Gross Unrealized Losses	(929)	(69)
Estimated Fair Value	36,949	45,201
Mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	465,291	448,124
Gross Unrealized Gains	1,733	15,822
Gross Unrealized Losses	(3,863)	(6)
Estimated Fair Value	$ 463,161	$ 463,940

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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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).

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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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