v2.4.0.6
Loan Balances (Detail) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2012
Dec. 31, 2011
Accounts, Notes, Loans and Financing Receivable [Line Items]  
Gross loans$ 1,145,230$ 1,131,401
Less: Deferred loan origination fees and discount(1,497)(1,447)
Allowance for loan losses(18,346)(18,288)
Net loans1,125,3871,111,666
Commercial
  
Accounts, Notes, Loans and Financing Receivable [Line Items]  
Gross loans181,932193,176
Residential real estate
  
Accounts, Notes, Loans and Financing Receivable [Line Items]  
Gross loans280,135266,268
Nonresidential real estate
  
Accounts, Notes, Loans and Financing Receivable [Line Items]  
Gross loans539,748523,485
Construction
  
Accounts, Notes, Loans and Financing Receivable [Line Items]  
Gross loans100,094104,788
Consumer
  
Accounts, Notes, Loans and Financing Receivable [Line Items]  
Gross loans16,30716,618
Municipal Obligations
  
Accounts, Notes, Loans and Financing Receivable [Line Items]  
Gross loans$ 27,014$ 27,066