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CREDIT QUALITY ASSESSMENT (Troubled Debt Restructured Loans for Specific Segments of the Loan Portfolio) (Detail) - USD ($)
6 Months Ended 12 Months Ended
Jun. 30, 2016
Dec. 31, 2015
Financing Receivable Modifications [Line Items]    
Restructured accruing $ 600,000 $ 1,900,000
Troubled Debt Restructuring    
Financing Receivable Modifications [Line Items]    
Restructured accruing 549,000 1,243,000
Restructured non-accruing 21,000 639,000
Balance 570,000 1,882,000
Specific allowance 60,000 452,000
Restructured and subsequently defaulted 0 0
Troubled Debt Restructuring | Commercial    
Financing Receivable Modifications [Line Items]    
Restructured accruing 42,000 1,003,000
Restructured non-accruing 21,000 0
Balance 63,000 1,003,000
Specific allowance 60,000 303,000
Restructured and subsequently defaulted 0 0
Troubled Debt Restructuring | All Other    
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 Portfolio Segment | Troubled Debt Restructuring | Commercial Acquisition, Development and Construction    
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 Portfolio Segment | Troubled Debt Restructuring | Commercial Investor Real Estate    
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 Portfolio Segment | Troubled Debt Restructuring | Commercial Owner Occupied Real Estate    
Financing Receivable Modifications [Line Items]    
Restructured accruing 507,000 240,000
Restructured non-accruing 0 639,000
Balance 507,000 879,000
Specific allowance 0 149,000
Restructured and subsequently defaulted $ 0 $ 0