SECURITIES, Available for Sale (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Available for sale [Abstract]
Amortized cost	$ 758,397	$ 775,999
Gross unrealized gains	22,549	27,875
Gross unrealized losses	(3,333)	(787)
Fair value	777,613	803,087
U.S. Government and Agencies [Member]
Available for sale [Abstract]
Amortized cost	0	4,750
Gross unrealized gains	0	3
Gross unrealized losses	0	0
Fair value	0	4,753
State and Municipal [Member]
Available for sale [Abstract]
Amortized cost	267,615	261,023
Gross unrealized gains	11,327	11,704
Gross unrealized losses	(127)	(120)
Fair value	278,815	272,607
Mortgage-backed Securities [Member]
Available for sale [Abstract]
Amortized cost	342,490	359,542
Gross unrealized gains	8,291	14,014
Gross unrealized losses	(3,206)	(194)
Fair value	347,575	373,362
Collateralized Mortgage Obligations [Member]
Available for sale [Abstract]
Amortized cost	106,976	107,175
Gross unrealized gains	944	0
Gross unrealized losses	0	(460)
Fair value	107,920	106,715
Asset-backed and Other Amortizing Securities [Member]
Available for sale [Abstract]
Amortized cost	29,316	31,509
Gross unrealized gains	1,575	2,063
Gross unrealized losses	0	0
Fair value	30,891	33,572
Other Securities [Member]
Available for sale [Abstract]
Amortized cost	12,000	12,000
Gross unrealized gains	412	91
Gross unrealized losses	0	(13)
Fair value	$ 12,412	$ 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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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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