CREDIT QUALITY ASSESSMENT (Credit Quality of Loan Portfolio by Segment) (Detail) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Financing Receivable Recorded Investment [Line Items]
Non-accrual loans and leases	$ 28,217	$ 29,211
Loans and leases 90 days past due	232	232
Restructured loans and leases	2,409	2,489
Total non-performing loans and leases	30,858	31,932
Other real estate owned	1,294	1,911
Total non-performing assets	32,152	33,843
Commercial
Financing Receivable Recorded Investment [Line Items]
Non-accrual loans and leases	4,849	5,833
Loans and leases 90 days past due	0	0
Restructured loans and leases	1,110	1,185
Total non-performing loans and leases	5,959	7,018
Other real estate owned	39	39
Total non-performing assets	5,998	7,057
Consumer
Financing Receivable Recorded Investment [Line Items]
Non-accrual loans and leases	3,058	2,859
Loans and leases 90 days past due	0	0
Restructured loans and leases	0	0
Total non-performing loans and leases	3,058	2,859
Other real estate owned	0	0
Total non-performing assets	3,058	2,859
Commercial Real Estate Portfolio Segment | Commercial Acquisition, Development and Construction
Financing Receivable Recorded Investment [Line Items]
Non-accrual loans and leases	137	137
Loans and leases 90 days past due	0	0
Restructured loans and leases	0	0
Total non-performing loans and leases	137	137
Other real estate owned	365	365
Total non-performing assets	502	502
Commercial Real Estate Portfolio Segment | Commercial Investor Real Estate
Financing Receivable Recorded Investment [Line Items]
Non-accrual loans and leases	7,970	8,107
Loans and leases 90 days past due	0	0
Restructured loans and leases	0	0
Total non-performing loans and leases	7,970	8,107
Other real estate owned	395	395
Total non-performing assets	8,365	8,502
Commercial Real Estate Portfolio Segment | Commercial Owner Occupied Real Estate
Financing Receivable Recorded Investment [Line Items]
Non-accrual loans and leases	5,106	4,823
Loans and leases 90 days past due	0	0
Restructured loans and leases	743	744
Total non-performing loans and leases	5,849	5,567
Other real estate owned	0	637
Total non-performing assets	5,849	6,204
Residential Real Estate Portfolio Segment | Residential Mortgage
Financing Receivable Recorded Investment [Line Items]
Non-accrual loans and leases	6,908	7,257
Loans and leases 90 days past due	232	232
Restructured loans and leases	556	560
Total non-performing loans and leases	7,696	8,049
Other real estate owned	495	475
Total non-performing assets	8,191	8,524
Residential Real Estate Portfolio Segment | Residential Construction
Financing Receivable Recorded Investment [Line Items]
Non-accrual loans and leases	189	195
Loans and leases 90 days past due	0	0
Restructured loans and leases	0	0
Total non-performing loans and leases	189	195
Other real estate owned	0	0
Total non-performing assets	$ 189	$ 195