v2.4.0.6
Loans by Class Modified as Troubled Debt Restructurings (Detail) (USD $)
 3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Financing Receivable, Modifications [Line Items]        
Number of Loans 1 2 10 5
Pre-Modification Outstanding Recorded Investment $ 31,757 $ 2,268,000 $ 4,221,036 $ 13,149,848
Post-Modification Outstanding Recorded Investment 29,979 2,268,000 3,529,544 13,107,519
Commercial [Member]
        
Financing Receivable, Modifications [Line Items]        
Number of Loans 1 0 2 0
Pre-Modification Outstanding Recorded Investment 31,757 0 190,168 0
Post-Modification Outstanding Recorded Investment 29,979 0 184,336 0
Residential Real Estate [Member] | Home Equity Line of Credit [Member]
        
Financing Receivable, Modifications [Line Items]        
Number of Loans 0 0 0 0
Pre-Modification Outstanding Recorded Investment 0 0 0 0
Post-Modification Outstanding Recorded Investment 0 0 0 0
Residential Real Estate [Member] | Multi Family [Member]
        
Financing Receivable, Modifications [Line Items]        
Number of Loans 0 0 1 0
Pre-Modification Outstanding Recorded Investment 0 0 485,000 0
Post-Modification Outstanding Recorded Investment 0 0 48,238 0
Residential Real Estate [Member] | Residential Real Estate Other Financing Receivable [Member]
        
Financing Receivable, Modifications [Line Items]        
Number of Loans 0 1 1 1
Pre-Modification Outstanding Recorded Investment 0 568,000 187,105 568,000
Post-Modification Outstanding Recorded Investment 0 568,000 186,074 568,000
Nonresidential Real Estate [Member] | Commercial Mortgage Loans, Owner Occupied [Member]
        
Financing Receivable, Modifications [Line Items]        
Number of Loans 0 1 1 1
Pre-Modification Outstanding Recorded Investment 0 1,700,000 153,891,000 1,700,000
Post-Modification Outstanding Recorded Investment 0 1,700,000 153,891,000 1,700,000
Nonresidential Real Estate [Member] | Commercial Mortgage Loans, Non Owner Occupied [Member]
        
Financing Receivable, Modifications [Line Items]        
Number of Loans 0 0 0 3
Pre-Modification Outstanding Recorded Investment 0 0 0 10,881,848
Post-Modification Outstanding Recorded Investment 0 0 0 10,839,519
Construction [Member]
        
Financing Receivable, Modifications [Line Items]        
Number of Loans 0 0 5 0
Pre-Modification Outstanding Recorded Investment 0 0 3,204,872 0
Post-Modification Outstanding Recorded Investment 0 0 2,957,005 0
Consumer [Member] | Consumer Credit Card Financing Receivable [Member]
        
Financing Receivable, Modifications [Line Items]        
Number of Loans 0 0 0 0
Pre-Modification Outstanding Recorded Investment 0 0 0 0
Post-Modification Outstanding Recorded Investment 0 0 0 0
Consumer [Member] | Consumer Other Financing Receivable [Member]
        
Financing Receivable, Modifications [Line Items]        
Number of Loans 0 0 0 0
Pre-Modification Outstanding Recorded Investment 0 0 0 0
Post-Modification Outstanding Recorded Investment 0 0 0 0
Municipal Obligations [Member]
        
Financing Receivable, Modifications [Line Items]        
Number of Loans 0 0 0 0
Pre-Modification Outstanding Recorded Investment 0 0 0 0
Post-Modification Outstanding Recorded Investment $ 0 $ 0 $ 0 $ 0