CREDIT QUALITY ASSESSMENT (Credit Quality of Loan Portfolio by Segment) (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Financing Receivable Recorded Investment [Line Items]
Non-accrual loans	$ 38,632	$ 33,583
Loans 90 days past due	0	489
Restructured loans	2,636	1,942
Total non-performing loans	41,268	36,014
Other real estate owned	1,482	1,584
Total non-performing assets	42,750	37,598
Commercial
Financing Receivable Recorded Investment [Line Items]
Non-accrual loans	8,450	7,086
Loans 90 days past due	0	49
Restructured loans	417	500
Total non-performing loans	8,867	7,635
Other real estate owned	39	39
Total non-performing assets	8,906	7,674
Consumer
Financing Receivable Recorded Investment [Line Items]
Non-accrual loans	4,107	4,107
Loans 90 days past due	0	219
Restructured loans	364	0
Total non-performing loans	4,471	4,326
Other real estate owned	64	0
Total non-performing assets	4,535	4,326
Commercial Real Estate Portfolio Segment \| Commercial Acquisition, Development and Construction
Financing Receivable Recorded Investment [Line Items]
Non-accrual loans	829	3,306
Loans 90 days past due	0	0
Restructured loans	0	0
Total non-performing loans	829	3,306
Other real estate owned	665	315
Total non-performing assets	1,494	3,621
Commercial Real Estate Portfolio Segment \| Commercial Investor Real Estate
Financing Receivable Recorded Investment [Line Items]
Non-accrual loans	8,437	5,355
Loans 90 days past due	0	0
Restructured loans	775	0
Total non-performing loans	9,212	5,355
Other real estate owned	409	409
Total non-performing assets	9,621	5,764
Commercial Real Estate Portfolio Segment \| Commercial Owner Occupied Real Estate
Financing Receivable Recorded Investment [Line Items]
Non-accrual loans	4,148	4,234
Loans 90 days past due	0	0
Restructured loans	0	0
Total non-performing loans	4,148	4,234
Other real estate owned	0	0
Total non-performing assets	4,148	4,234
Residential Real Estate Portfolio Segment \| Residential Mortgage
Financing Receivable Recorded Investment [Line Items]
Non-accrual loans	12,661	9,336
Loans 90 days past due	0	221
Restructured loans	1,080	1,442
Total non-performing loans	13,741	10,999
Other real estate owned	305	821
Total non-performing assets	14,046	11,820
Residential Real Estate Portfolio Segment \| Residential Construction
Financing Receivable Recorded Investment [Line Items]
Non-accrual loans	0	159
Loans 90 days past due	0	0
Restructured loans	0	0
Total non-performing loans	0	159
Other real estate owned	0	0
Total non-performing assets	$ 0	$ 159

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