Quarterly report pursuant to Section 13 or 15(d)

Troubled Debt Restructurings, Disaggregated by Class of Loans (Detail)

v2.4.0.6
Troubled Debt Restructurings, Disaggregated by Class of Loans (Detail) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 9 Months Ended
Sep. 30, 2012
SecurityLoan
Sep. 30, 2011
SecurityLoan
Sep. 30, 2012
SecurityLoan
Sep. 30, 2011
SecurityLoan
Financing Receivable, Modifications [Line Items]        
Number of Loans 13 58 50 96
Pre-Modification Outstanding Recorded Investment $ 6,049 $ 22,032 $ 12,939 $ 53,197
Post-Modification Outstanding Recorded Investment 6,032 21,212 12,144 50,656
Residential Property [Member] | Real Estate Loan [Member]
        
Financing Receivable, Modifications [Line Items]        
Number of Loans   1 [1]   2 [2]
Pre-Modification Outstanding Recorded Investment   458 [1]   1,325 [2]
Post-Modification Outstanding Recorded Investment   449 [1]   1,315 [2]
Commercial Lines of Credit [Member] | Commercial and Industrial Loans [Member]
        
Financing Receivable, Modifications [Line Items]        
Number of Loans   1 [3] 1 [4] 1 [4]
Pre-Modification Outstanding Recorded Investment   123 [3] 202 [4] 123 [4]
Post-Modification Outstanding Recorded Investment   120 [3] 188 [4] 120 [4]
SBA Loans [Member] | Commercial and Industrial Loans [Member]
        
Financing Receivable, Modifications [Line Items]        
Number of Loans 3 [5] 17 [5] 11 [6] 24 [6]
Pre-Modification Outstanding Recorded Investment 78 [5] 2,684 [5] 1,060 [6] 7,693 [6]
Post-Modification Outstanding Recorded Investment 89 [5] 2,615 [5] 1,000 [6] 7,149 [6]
Secured by Real Estate [Member] | Commercial and Industrial Loans [Member]
        
Financing Receivable, Modifications [Line Items]        
Number of Loans 3 [7] 7 [7] 5 [4] 17 [4]
Pre-Modification Outstanding Recorded Investment 4,525 [7] 6,706 [7] 5,584 [4] 21,342 [4]
Post-Modification Outstanding Recorded Investment 4,475 [7] 6,115 [7] 5,307 [4] 20,033 [4]
Retail [Member] | Real Estate Loan [Member]
        
Financing Receivable, Modifications [Line Items]        
Number of Loans 1 [8]   1 [9] 2 [9]
Pre-Modification Outstanding Recorded Investment 131 [8]   184 [9] 2,982 [9]
Post-Modification Outstanding Recorded Investment 177 [8]   177 [9] 2,895 [9]
Other [Member] | Real Estate Loan [Member]
        
Financing Receivable, Modifications [Line Items]        
Number of Loans 1 [10] 3 [10] 1 [11] 5 [11]
Pre-Modification Outstanding Recorded Investment 538 [10] 3,782 [10] 547 [11] 5,606 [11]
Post-Modification Outstanding Recorded Investment 532 [10] 3,782 [10] 532 [11] 5,588 [11]
Unsecured [Member] | Commercial and Industrial Loans [Member]
        
Financing Receivable, Modifications [Line Items]        
Number of Loans 5 [12] 29 [12] 31 [13] 45 [13]
Pre-Modification Outstanding Recorded Investment 777 [12] 8,279 [12] 5,362 [13] 14,126 [13]
Post-Modification Outstanding Recorded Investment $ 759 [12] $ 8,131 [12] $ 4,940 [13] $ 13,556 [13]
[1] Includes a modification of $449,000 through payment deferral
[2] Includes a modification of $1.3 million through payment deferral
[3] Includes a modification of $120,000 through extension of maturity
[4] Includes modifications of $3.1 million through payment deferral, $1.9 million through extension of maturity and $338,000 through reduction of principal or accrued interest for the nine months ended September 30, 2012, and modifications of $9.3 million through reduction of principal or accrued interest, $7.4 million through payment deferrals, and $3.3 million in extension of maturity for the nine months ended September 30, 2011
[5] Includes modifications of $48,000 through payment deferral and $41,000 through reduction of principal or accrued interest for the three months ended September 30, 2012, and modifications of $2.3 million through payment deferral and $273,000 through reduction of principal or accrued interest
[6] Includes modifications of $551,000 through payment deferral and $449,000 through reduction of principal or accrued interest for the nine months ended September 30, 2012, and modifications of $6.2 million through payment deferral and $919,000 through reduction of principal or accrued interest for the nine months ended September 30, 2011
[7] Includes modifications of $3.1 million through payment deferral and $1.4 million through extension of maturity for the three months ended September 30, 2012, and modifications of $1.2 million through reduction of principal or accrued interest and $4.9 million through payment deferral for the three months ended September 30, 2011
[8] Includes a modification of $177,000 through extension of maturity
[9] Includes a modification of $177,000 through extension of maturity for the nine months ended September 30, 2012 and a modification of $2.9 million through payment deferral for the nine months ended September 30, 2011
[10] Includes a modification of $532,000 through payment deferral for the three months ended September 30, 2012 and a modification of $3.8 million through payment deferral for the three months ended September 30, 2011
[11] Includes a modification of $532,000 through payment deferral for the nine months ended September 30, 2012, and includes a modification of $5.6 million through payment deferral for the nine months ended September 30, 2011
[12] Includes modifications of $750,000 through extension of maturity and $9,000 through payment deferral for the three months ended September 30, 2012 and modifications of $6.3 million through reduction of principal or accrued interest, $1.2 million through payment deferral and $700,000 through extension of maturity for the three months ended September 30, 2011
[13] Includes modifications of $2.2 million through extension of maturity, $1.9 million through reduction of principal or accrued interest, $884,000 through payment deferral for the nine months ended September 30, 2012, and modifications of $11.3 million through reduction of principal or accrued interest, $1.2 million through payment deferral, and $1.1 million through extension of maturity for the nine months ended September 30, 2011