CREDIT QUALITY ASSESSMENT (Restructured Loans at the date of Restructuring For Specific Segments of the Loan Portfolio) (Detail) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Financing Receivable Modifications [Line Items]
Restructured accruing	$ 322	$ 1,309
Restructured non-accruing	1,107	1,050
Balance	1,429	2,359
Specific allowance	180	401
Restructured and subsequently defaulted	0	0
Commercial [Member]
Financing Receivable Modifications [Line Items]
Restructured accruing	322	170
Restructured non-accruing	0	261
Balance	322	431
Specific allowance	80	196
Restructured and subsequently defaulted	0	0
All Other Loans
Financing Receivable Modifications [Line Items]
Restructured accruing	0	364
Restructured non-accruing	0	0
Balance	0	364
Specific allowance	0	0
Restructured and subsequently defaulted	0	0
Commercial Real Estate Portfolio Segment | Commercial AD&C [Member]
Financing Receivable Modifications [Line Items]
Restructured accruing	0	0
Restructured non-accruing	0	0
Balance	0	0
Specific allowance	0	0
Restructured and subsequently defaulted	0	0
Commercial Real Estate Portfolio Segment | Commercial Investor RE [Member]
Financing Receivable Modifications [Line Items]
Restructured accruing	0	775
Restructured non-accruing	347	789
Balance	347	1,564
Specific allowance	60	205
Restructured and subsequently defaulted	0	0
Commercial Real Estate Portfolio Segment | Commercial Owner Occupied RE [Member]
Financing Receivable Modifications [Line Items]
Restructured accruing	0	0
Restructured non-accruing	760	0
Balance	760	0
Specific allowance	40	0
Restructured and subsequently defaulted	$ 0	$ 0