LOANS AND LEASES (Allowance for Loan and Lease Losses) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
LOANS AND LEASES
Collateral-Dependent Financing Receivable	$ 9,177	$ 11,659
Allocated ACL	0	209
Loans and leases :
Loans and leases	5,105,758	4,972,004
Net deferred costs (income)	(4,109)	(7,891)
Total loans	5,101,649	4,964,113
1-4 Family Residential Properties [Member]
LOANS AND LEASES
Collateral-Dependent Financing Receivable	9,177	10,357
Nonfarm Nonresidential Properties [Member]
LOANS AND LEASES
Collateral-Dependent Financing Receivable	0	626
Real Estate and Business Assets [Member]
LOANS AND LEASES
Collateral-Dependent Financing Receivable	0	676
Commercial, financial and agricultural:
LOANS AND LEASES
Collateral-Dependent Financing Receivable	0	676
Allocated ACL	0	209
Loans and leases :
Loans and leases		545,136
Net deferred costs (income)		(45)
Total loans		545,091
Commercial, financial and agricultural: \| 1-4 Family Residential Properties [Member]
LOANS AND LEASES
Collateral-Dependent Financing Receivable	0	0
Commercial, financial and agricultural: \| Nonfarm Nonresidential Properties [Member]
LOANS AND LEASES
Collateral-Dependent Financing Receivable	0	0
Commercial, financial and agricultural: \| Real Estate and Business Assets [Member]
LOANS AND LEASES
Collateral-Dependent Financing Receivable	0	676
Real Estate \| Construction
Loans and leases :
Loans and leases	123,351	125,625
Net deferred costs (income)	(484)	(218)
Total loans	122,867	125,407
Real Estate \| Residential mortgage
Loans and leases :
Loans and leases	1,875,200	1,687,251
Net deferred costs (income)	780	2,961
Total loans	1,875,980	1,690,212
Real Estate \| Home equity
LOANS AND LEASES
Collateral-Dependent Financing Receivable	786	524
Allocated ACL	0	0
Loans and leases :
Loans and leases	635,721	550,216
Net deferred costs (income)	1,528	1,050
Total loans	637,249	551,266
Real Estate \| Home equity \| 1-4 Family Residential Properties [Member]
LOANS AND LEASES
Collateral-Dependent Financing Receivable	786	524
Real Estate \| Home equity \| Nonfarm Nonresidential Properties [Member]
LOANS AND LEASES
Collateral-Dependent Financing Receivable	0	0
Real Estate \| Home equity \| Real Estate and Business Assets [Member]
LOANS AND LEASES
Collateral-Dependent Financing Receivable	0	0
Real Estate \| Commercial mortgage
Loans and leases :
Loans and leases	1,222,138	1,158,203
Net deferred costs (income)	(1,934)	(1,875)
Total loans	1,220,204	1,156,328
Real Estate \| Residential mortgage:
LOANS AND LEASES
Collateral-Dependent Financing Receivable	8,391	9,833
Allocated ACL	0	0
Real Estate \| Residential mortgage: \| 1-4 Family Residential Properties [Member]
LOANS AND LEASES
Collateral-Dependent Financing Receivable	8,391	9,833
Real Estate \| Residential mortgage: \| Nonfarm Nonresidential Properties [Member]
LOANS AND LEASES
Collateral-Dependent Financing Receivable	0	0
Real Estate \| Residential mortgage: \| Real Estate and Business Assets [Member]
LOANS AND LEASES
Collateral-Dependent Financing Receivable	0	0
Real Estate \| Commercial mortgage:
LOANS AND LEASES
Collateral-Dependent Financing Receivable	0	626
Allocated ACL	0	0
Real Estate \| Commercial mortgage: \| 1-4 Family Residential Properties [Member]
LOANS AND LEASES
Collateral-Dependent Financing Receivable	0	0
Real Estate \| Commercial mortgage: \| Nonfarm Nonresidential Properties [Member]
LOANS AND LEASES
Collateral-Dependent Financing Receivable	0	626
Real Estate \| Commercial mortgage: \| Real Estate and Business Assets [Member]
LOANS AND LEASES
Collateral-Dependent Financing Receivable	0	0
Consumer \| Consumer
Loans and leases :
Loans and leases	624,115	479,580
Net deferred costs (income)	(214)	(146)
Total loans	$ 623,901	$ 479,434

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Collateral-Dependent Financing Receivable, Related Allowance

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Amount of deferred interest and fee income, unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of acquired loans. Excludes amounts for loans and leases covered under loss sharing agreements.

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

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