CREDIT QUALITY ASSESSMENT (Credit Quality of Loan Portfolio by Segment) (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Financing Receivable Recorded Investment [Line Items]
Non-accrual loans	$ 27,054	$ 26,336
Loans 90 days past due	118	225
Restructured loans	1,663	2,788
Total non-performing loans	28,835	29,349
Other real estate owned	2,361	2,253
Total non-performing assets	31,196	31,602
Commercial
Financing Receivable Recorded Investment [Line Items]
Non-accrual loans	6,883	6,703
Loans 90 days past due	6	0
Restructured loans	785	1,402
Total non-performing loans	7,674	8,105
Other real estate owned	39	39
Total non-performing assets	7,713	8,144
Consumer
Financing Receivable Recorded Investment [Line Items]
Non-accrual loans	4,298	2,967
Loans 90 days past due	0	0
Restructured loans	0	0
Total non-performing loans	4,298	2,967
Other real estate owned	0	0
Total non-performing assets	4,298	2,967
Commercial Real Estate Portfolio Segment | Commercial Acquisition, Development and Construction
Financing Receivable Recorded Investment [Line Items]
Non-accrual loans	136	136
Loans 90 days past due	0	0
Restructured loans	0	0
Total non-performing loans	136	136
Other real estate owned	365	365
Total non-performing assets	501	501
Commercial Real Estate Portfolio Segment | Commercial Investor Real Estate
Financing Receivable Recorded Investment [Line Items]
Non-accrual loans	5,878	5,575
Loans 90 days past due	0	0
Restructured loans	0	0
Total non-performing loans	5,878	5,575
Other real estate owned	497	0
Total non-performing assets	6,375	5,575
Commercial Real Estate Portfolio Segment | Commercial Owner Occupied Real Estate
Financing Receivable Recorded Investment [Line Items]
Non-accrual loans	3,440	3,582
Loans 90 days past due	112	0
Restructured loans	0	496
Total non-performing loans	3,552	4,078
Other real estate owned	0	400
Total non-performing assets	3,552	4,478
Residential Real Estate Portfolio Segment | Residential Mortgage
Financing Receivable Recorded Investment [Line Items]
Non-accrual loans	6,251	7,196
Loans 90 days past due	0	225
Restructured loans	878	890
Total non-performing loans	7,129	8,311
Other real estate owned	1,460	1,449
Total non-performing assets	8,589	9,760
Residential Real Estate Portfolio Segment | Residential Construction
Financing Receivable Recorded Investment [Line Items]
Non-accrual loans	168	177
Loans 90 days past due	0	0
Restructured loans	0	0
Total non-performing loans	168	177
Other real estate owned	0	0
Total non-performing assets	$ 168	$ 177