Annual report pursuant to Section 13 and 15(d)

Loans - Troubled Debt Restructurings, Disaggregated by Type of Concession and by Loan Type (Detail)

v2.4.0.6
Loans - Troubled Debt Restructurings, Disaggregated by Type of Concession and by Loan Type (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Financing Receivable, Modifications [Line Items]    
Non-Accrual TDRs Deferral of Principal $ 6,648 $ 6,340
Non-Accrual TDRs Deferral of Principal and Interest 3,288 3,716
Non-Accrual TDRs Reduction of Principal or Interest 6,096 7,985
Non-Accrual TDRs Extension of Maturity 2,737 5,185
Non-Accrual TDRs 18,769 23,226
Accrual TDRs Deferral of Principal 6,788 7,191
Accrual TDRs Deferral of Principal and Interest 572 1,040
Accrual TDRs Reduction of Principal or Interest 1,638 15,697
Accrual TDRs Extension of Maturity 7,982 4,283
Accrual TDRs 16,980 28,375
Real Estate Loans [Member] | Retail [Member]
    
Financing Receivable, Modifications [Line Items]    
Non-Accrual TDRs Deferral of Principal      
Non-Accrual TDRs Deferral of Principal and Interest      
Non-Accrual TDRs Reduction of Principal or Interest      
Non-Accrual TDRs Extension of Maturity 1,080 1,260
Non-Accrual TDRs 1,080 1,260
Accrual TDRs Deferral of Principal 357   
Accrual TDRs Deferral of Principal and Interest      
Accrual TDRs Reduction of Principal or Interest      
Accrual TDRs Extension of Maturity 175   
Accrual TDRs 532   
Real Estate Loans [Member] | Other [Member]
    
Financing Receivable, Modifications [Line Items]    
Non-Accrual TDRs Deferral of Principal    900
Non-Accrual TDRs Deferral of Principal and Interest      
Non-Accrual TDRs Reduction of Principal or Interest      
Non-Accrual TDRs Extension of Maturity      
Non-Accrual TDRs    900
Accrual TDRs Deferral of Principal 527 1,480
Accrual TDRs Deferral of Principal and Interest      
Accrual TDRs Reduction of Principal or Interest      
Accrual TDRs Extension of Maturity      
Accrual TDRs 527 1,480
Real Estate Loans [Member] | Residential Property [Member]
    
Financing Receivable, Modifications [Line Items]    
Non-Accrual TDRs Deferral of Principal 827   
Non-Accrual TDRs Deferral of Principal and Interest      
Non-Accrual TDRs Reduction of Principal or Interest    138
Non-Accrual TDRs Extension of Maturity      
Non-Accrual TDRs 827 138
Accrual TDRs Deferral of Principal    2,167
Accrual TDRs Deferral of Principal and Interest 572 572
Accrual TDRs Reduction of Principal or Interest      
Accrual TDRs Extension of Maturity      
Accrual TDRs 572 2,739
Commercial and Industrial Loans [Member] | Unsecured [Member]
    
Financing Receivable, Modifications [Line Items]    
Non-Accrual TDRs Deferral of Principal    765
Non-Accrual TDRs Deferral of Principal and Interest 658 669
Non-Accrual TDRs Reduction of Principal or Interest 4,558 4,650
Non-Accrual TDRs Extension of Maturity 1,413 484
Non-Accrual TDRs 6,629 6,568
Accrual TDRs Deferral of Principal 976 185
Accrual TDRs Deferral of Principal and Interest      
Accrual TDRs Reduction of Principal or Interest 1,090 7,069
Accrual TDRs Extension of Maturity 3,260 1,584
Accrual TDRs 5,326 8,838
Commercial and Industrial Loans [Member] | Secured By Real Estate [Member]
    
Financing Receivable, Modifications [Line Items]    
Non-Accrual TDRs Deferral of Principal 2,317 1,202
Non-Accrual TDRs Deferral of Principal and Interest 1,343 1,523
Non-Accrual TDRs Reduction of Principal or Interest 318 2,403
Non-Accrual TDRs Extension of Maturity    3,243
Non-Accrual TDRs 3,978 8,371
Accrual TDRs Deferral of Principal 4,444 2,005
Accrual TDRs Deferral of Principal and Interest      
Accrual TDRs Reduction of Principal or Interest 448 8,628
Accrual TDRs Extension of Maturity 4,547 2,699
Accrual TDRs 9,439 13,332
Commercial and Industrial Loans [Member] | Commercial Lines of Credit [Member]
    
Financing Receivable, Modifications [Line Items]    
Non-Accrual TDRs Deferral of Principal 673 715
Non-Accrual TDRs Deferral of Principal and Interest      
Non-Accrual TDRs Reduction of Principal or Interest 188   
Non-Accrual TDRs Extension of Maturity 244 198
Non-Accrual TDRs 1,105 913
Accrual TDRs Deferral of Principal      
Accrual TDRs Deferral of Principal and Interest     
Accrual TDRs Reduction of Principal or Interest      
Accrual TDRs Extension of Maturity      
Accrual TDRs      
Commercial and Industrial Loans [Member] | SBA Loans [Member]
    
Financing Receivable, Modifications [Line Items]    
Non-Accrual TDRs Deferral of Principal 2,831 2,758
Non-Accrual TDRs Deferral of Principal and Interest 1,287 1,524
Non-Accrual TDRs Reduction of Principal or Interest 1,032 794
Non-Accrual TDRs Extension of Maturity      
Non-Accrual TDRs 5,150 5,076
Accrual TDRs Deferral of Principal 484 1,354
Accrual TDRs Deferral of Principal and Interest    468
Accrual TDRs Reduction of Principal or Interest 100   
Accrual TDRs Extension of Maturity      
Accrual TDRs $ 584 $ 1,986