Quarterly report pursuant to Section 13 or 15(d)

Loans - Troubled Debt Restructuring, Disaggregated by Loan Class (Detail)

v2.4.0.8
Loans - Troubled Debt Restructuring, Disaggregated by Loan Class (Detail) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 9 Months Ended
Sep. 30, 2013
SecurityLoan
Sep. 30, 2012
SecurityLoan
Sep. 30, 2013
SecurityLoan
Sep. 30, 2012
SecurityLoan
Financing Receivable, Modifications [Line Items]        
Number of Loans 12 13 24 50
Pre-Modification Outstanding Recorded Investment $ 3,133 $ 6,049 $ 5,809 $ 12,939
Post-Modification Outstanding Recorded Investment 3,107 6,032 5,189 12,144
Consumer loans [Member]
        
Financing Receivable, Modifications [Line Items]        
Number of Loans     1  
Pre-Modification Outstanding Recorded Investment     149  
Post-Modification Outstanding Recorded Investment     149  
Real estate loans [Member] | Retail [Member]
        
Financing Receivable, Modifications [Line Items]        
Number of Loans   1   1
Pre-Modification Outstanding Recorded Investment   131   184
Post-Modification Outstanding Recorded Investment   177   177
Real estate loans [Member] | Other [Member]
        
Financing Receivable, Modifications [Line Items]        
Number of Loans 1 1    
Pre-Modification Outstanding Recorded Investment 646 538    
Post-Modification Outstanding Recorded Investment 649 532    
Real estate loans [Member] | Land [Member]
        
Financing Receivable, Modifications [Line Items]        
Number of Loans       1
Pre-Modification Outstanding Recorded Investment       547
Post-Modification Outstanding Recorded Investment       532
Real estate loans [Member] | Other [Member]
        
Financing Receivable, Modifications [Line Items]        
Number of Loans     1  
Pre-Modification Outstanding Recorded Investment     658  
Post-Modification Outstanding Recorded Investment     649  
Commercial and Industrial loans [Member] | Unsecured [Member]
        
Financing Receivable, Modifications [Line Items]        
Number of Loans 8 5 14 31
Pre-Modification Outstanding Recorded Investment 1,015 777 1,780 5,362
Post-Modification Outstanding Recorded Investment 1,002 759 1,618 4,940
Commercial and Industrial loans [Member] | Secured by real estate [Member]
        
Financing Receivable, Modifications [Line Items]        
Number of Loans 2 3 2 5
Pre-Modification Outstanding Recorded Investment 1,365 4,525 1,365 5,584
Post-Modification Outstanding Recorded Investment 1,365 4,475 1,365 5,307
Commercial and Industrial loans [Member] | SBA loans [Member]
        
Financing Receivable, Modifications [Line Items]        
Number of Loans 1 3 3 11
Pre-Modification Outstanding Recorded Investment 107 78 273 1,060
Post-Modification Outstanding Recorded Investment 91 89 228 1,000
Commercial and Industrial loans [Member] | Commercial lines of credit [Member]
        
Financing Receivable, Modifications [Line Items]        
Number of Loans     1 1
Pre-Modification Outstanding Recorded Investment       202
Post-Modification Outstanding Recorded Investment       188
Commercial and Industrial loans [Member] | International loans [Member]
        
Financing Receivable, Modifications [Line Items]        
Number of Loans     2  
Pre-Modification Outstanding Recorded Investment     1,584  
Post-Modification Outstanding Recorded Investment     $ 1,180