XML 94 R33.htm IDEA: XBRL DOCUMENT v2.4.0.8
Summary of Assets Reported at Fair Value on Recurring Basis (Detail) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2013
Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investment securities available for sale $ 393,576 $ 380,188
U.S. Government agencies collateralized by mortgage obligations
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investment securities available for sale 299,644 301,389
Fair Value, Inputs, Level 1
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investment securities available for sale 2,234 1,809
Fair Value, Inputs, Level 2
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investment securities available for sale 391,342 378,379
Fair Value, Inputs, Level 3
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investment securities available for sale 0 0
Fair Value, Measurements, Recurring
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investment securities available for sale 393,576 380,188
Fair Value, Measurements, Recurring | Obligations of State and Political Subdivisions
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investment securities available for sale 87,405 73,986
Fair Value, Measurements, Recurring | U.S.Governmentagencies
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investment securities available for sale 4,293 2,973
Fair Value, Measurements, Recurring | U.S. Government agencies collateralized by mortgage obligations
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investment securities available for sale 299,644 301,389
Fair Value, Measurements, Recurring | Other Securities
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investment securities available for sale 2,234 1,840
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1 | Obligations of State and Political Subdivisions
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investment securities available for sale 0 0
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1 | U.S.Governmentagencies
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investment securities available for sale 0 0
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1 | U.S. Government agencies collateralized by mortgage obligations
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investment securities available for sale 0 0
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1 | Other Securities
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investment securities available for sale 2,234 1,809
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Obligations of State and Political Subdivisions
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investment securities available for sale 87,405 73,986
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | U.S.Governmentagencies
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investment securities available for sale 4,293 2,973
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | U.S. Government agencies collateralized by mortgage obligations
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investment securities available for sale 299,644 301,389
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Other Securities
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investment securities available for sale 0 31
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 | Obligations of State and Political Subdivisions
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investment securities available for sale 0 0
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 | U.S.Governmentagencies
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investment securities available for sale 0 0
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 | U.S. Government agencies collateralized by mortgage obligations
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investment securities available for sale 0 0
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 | Other Securities
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investment securities available for sale $ 0 $ 0