LOANS AND ALLOWANCE FOR CREDIT LOSSES ON LOANS (Loan Aging Analysis by Portfolio Segment) (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Financing Receivable, Past Due [Line Items]
Loans outstanding	$ 3,534,218	$ 3,431,474
Loans 90 Days Past Due and Accruing	0	0
Financing Receivable, Year One, Originated, Current Fiscal Year	269,131	1,099,415
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	1,057,180	557,853
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	517,396	352,013
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	325,087	275,431
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	260,156	213,669
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	782,682	637,117
Financing Receivable, Revolving	275,319	251,440
Financing Receivable, Revolving, Converted to Term Loan	47,267	44,536
Gross loans	3,534,218	3,431,474
Commercial real estate - non-owner-occupied
Financing Receivable, Past Due [Line Items]
Loans outstanding	1,181,622	1,178,185
Loans 90 Days Past Due and Accruing	0	0
Gross loans	1,181,622	1,178,185
Commercial real estate - owner-occupied
Financing Receivable, Past Due [Line Items]
Loans outstanding	322,268	317,275
Loans 90 Days Past Due and Accruing		0
Gross loans	322,268	317,275
Commercial
Financing Receivable, Past Due [Line Items]
Loans outstanding	403,352	363,695
Loans 90 Days Past Due and Accruing	0	0
Gross loans	403,352	363,695
SBA PPP
Financing Receivable, Past Due [Line Items]
Loans outstanding	6,311	35,953
Loans 90 Days Past Due and Accruing	0	0
Gross loans	6,311	35,953
Residential real estate
Financing Receivable, Past Due [Line Items]
Loans outstanding	1,392,199	1,306,447
Loans 90 Days Past Due and Accruing	0	0
Gross loans	1,392,199	1,306,447
Home equity
Financing Receivable, Past Due [Line Items]
Loans outstanding	209,647	210,403
Loans 90 Days Past Due and Accruing	0	0
Gross loans	209,647	210,403
Consumer
Financing Receivable, Past Due [Line Items]
Loans outstanding	18,819	19,516
Loans 90 Days Past Due and Accruing	0	0
Gross loans	18,819	19,516
Total Past Due
Financing Receivable, Past Due [Line Items]
Loans outstanding	4,332	4,685
Total Past Due | Commercial real estate - non-owner-occupied
Financing Receivable, Past Due [Line Items]
Loans outstanding	141	51
Total Past Due | Commercial real estate - owner-occupied
Financing Receivable, Past Due [Line Items]
Loans outstanding	133	180
Total Past Due | Commercial
Financing Receivable, Past Due [Line Items]
Loans outstanding	991	1,243
Total Past Due | SBA PPP
Financing Receivable, Past Due [Line Items]
Loans outstanding	1	68
Total Past Due | Residential real estate
Financing Receivable, Past Due [Line Items]
Loans outstanding	2,109	2,064
Total Past Due | Home equity
Financing Receivable, Past Due [Line Items]
Loans outstanding	880	951
Total Past Due | Consumer
Financing Receivable, Past Due [Line Items]
Loans outstanding	77	128
30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans outstanding	1,116	1,259
30-59 Days Past Due | Commercial real estate - non-owner-occupied
Financing Receivable, Past Due [Line Items]
Loans outstanding	91	0
30-59 Days Past Due | Commercial real estate - owner-occupied
Financing Receivable, Past Due [Line Items]
Loans outstanding	0	47
30-59 Days Past Due | Commercial
Financing Receivable, Past Due [Line Items]
Loans outstanding	98	282
30-59 Days Past Due | SBA PPP
Financing Receivable, Past Due [Line Items]
Loans outstanding	0	0
30-59 Days Past Due | Residential real estate
Financing Receivable, Past Due [Line Items]
Loans outstanding	565	379
30-59 Days Past Due | Home equity
Financing Receivable, Past Due [Line Items]
Loans outstanding	320	456
30-59 Days Past Due | Consumer
Financing Receivable, Past Due [Line Items]
Loans outstanding	42	95
60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans outstanding	530	768
60-89 Days Past Due | Commercial real estate - non-owner-occupied
Financing Receivable, Past Due [Line Items]
Loans outstanding	0	0
60-89 Days Past Due | Commercial real estate - owner-occupied
Financing Receivable, Past Due [Line Items]
Loans outstanding	0	0
60-89 Days Past Due | Commercial
Financing Receivable, Past Due [Line Items]
Loans outstanding	71	174
60-89 Days Past Due | SBA PPP
Financing Receivable, Past Due [Line Items]
Loans outstanding	1	68
60-89 Days Past Due | Residential real estate
Financing Receivable, Past Due [Line Items]
Loans outstanding	302	475
60-89 Days Past Due | Home equity
Financing Receivable, Past Due [Line Items]
Loans outstanding	148	50
60-89 Days Past Due | Consumer
Financing Receivable, Past Due [Line Items]
Loans outstanding	8	1
90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Loans outstanding	2,686	2,658
90 Days or Greater Past Due | Commercial real estate - non-owner-occupied
Financing Receivable, Past Due [Line Items]
Loans outstanding	50	51
90 Days or Greater Past Due | Commercial real estate - owner-occupied
Financing Receivable, Past Due [Line Items]
Loans outstanding	133	133
90 Days or Greater Past Due | Commercial
Financing Receivable, Past Due [Line Items]
Loans outstanding	822	787
90 Days or Greater Past Due | SBA PPP
Financing Receivable, Past Due [Line Items]
Loans outstanding	0	0
90 Days or Greater Past Due | Residential real estate
Financing Receivable, Past Due [Line Items]
Loans outstanding	1,242	1,210
90 Days or Greater Past Due | Home equity
Financing Receivable, Past Due [Line Items]
Loans outstanding	412	445
90 Days or Greater Past Due | Consumer
Financing Receivable, Past Due [Line Items]
Loans outstanding	27	32
Current
Financing Receivable, Past Due [Line Items]
Loans outstanding	3,529,886	3,426,789
Current | Commercial real estate - non-owner-occupied
Financing Receivable, Past Due [Line Items]
Loans outstanding	1,181,481	1,178,134
Current | Commercial real estate - owner-occupied
Financing Receivable, Past Due [Line Items]
Loans outstanding	322,135	317,095
Current | Commercial
Financing Receivable, Past Due [Line Items]
Loans outstanding	402,361	362,452
Current | SBA PPP
Financing Receivable, Past Due [Line Items]
Loans outstanding	6,310	35,885
Current | Residential real estate
Financing Receivable, Past Due [Line Items]
Loans outstanding	1,390,090	1,304,383
Current | Home equity
Financing Receivable, Past Due [Line Items]
Loans outstanding	208,767	209,452
Current | Consumer
Financing Receivable, Past Due [Line Items]
Loans outstanding	18,742	19,388
Commercial
Financing Receivable, Past Due [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	32,660	91,247
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	83,238	44,213
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	41,657	45,835
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	42,688	24,502
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	22,703	14,494
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	39,812	29,174
Financing Receivable, Revolving	105,665	82,102
Financing Receivable, Revolving, Converted to Term Loan	34,929	32,128
Gross loans	403,352	363,695
Commercial | Doubtful
Financing Receivable, Past Due [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0	0
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving, Converted to Term Loan	0	0
Gross loans	0	0
Residential real estate
Financing Receivable, Past Due [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	133,167	586,637
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	591,512	281,804
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	264,479	103,228
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	90,410	63,403
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	57,168	46,696
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	254,550	223,776
Financing Receivable, Revolving	913	903
Financing Receivable, Revolving, Converted to Term Loan	0	0
Gross loans	1,392,199	1,306,447
Residential real estate | Doubtful
Financing Receivable, Past Due [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0	0
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving, Converted to Term Loan	0	0
Gross loans	0	0
Commercial real estate - non-owner-occupied
Financing Receivable, Past Due [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	74,125	286,949
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	285,083	188,349
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	177,364	162,198
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	137,541	128,257
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	124,701	100,854
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	382,808	311,578
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving, Converted to Term Loan	0	0
Gross loans	1,181,622	1,178,185
Commercial real estate - non-owner-occupied | Doubtful
Financing Receivable, Past Due [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0	0
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving, Converted to Term Loan	0	0
Gross loans	$ 0	$ 0