SECURITIES, Available for Sale (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Available for sale [Abstract]
Amortized cost	$ 775,999	$ 706,437
Gross unrealized gains	27,875	5,412
Gross unrealized losses	(787)	(4,199)
Fair value	803,087	707,650
U.S. Government and Agencies [Member]
Available for sale [Abstract]
Amortized cost	4,750	4,750
Gross unrealized gains	3	57
Gross unrealized losses	0	0
Fair value	4,753	4,807
State and Municipal [Member]
Available for sale [Abstract]
Amortized cost	261,023	94,512
Gross unrealized gains	11,704	1,091
Gross unrealized losses	(120)	(911)
Fair value	272,607	94,692
Mortgage-backed Securities [Member]
Available for sale [Abstract]
Amortized cost	359,542	463,899
Gross unrealized gains	14,014	3,727
Gross unrealized losses	(194)	(3,110)
Fair value	373,362	464,516
Collateralized Mortgage Obligations [Member]
Available for sale [Abstract]
Amortized cost	107,175	107,443
Gross unrealized gains	0	15
Gross unrealized losses	(460)	(169)
Fair value	106,715	107,289
Asset-backed and Other Amortizing Securities [Member]
Available for sale [Abstract]
Amortized cost	31,509	35,833
Gross unrealized gains	2,063	522
Gross unrealized losses	0	(9)
Fair value	33,572	$ 36,346
Other Securities [Member]
Available for sale [Abstract]
Amortized cost	12,000
Gross unrealized gains	91
Gross unrealized losses	(13)
Fair value	$ 12,078

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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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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