Financial Assets Measured at Fair Value on Recurring and Non Recurring Basis (Detail) (USD $) | Jun. 30, 2014 | Dec. 31, 2013 |
In Thousands, unless otherwise specified |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities | $180,723 | $163,344 |
Debt securities | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities | ' | 163,147 |
Equity | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities | ' | 197 |
U.S. Government and federal agency | Debt securities | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities | 29,607 | 29,866 |
Agency mortgage-backed: residential | Debt securities | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities | 118,837 | 100,943 |
State and municipal | Debt securities | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities | 12,559 | 13,545 |
Corporate bonds | Debt securities | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities | 19,069 | 18,161 |
Other | Debt securities | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities | 651 | 632 |
Quoted Prices In Active Markets for Identical Assets (Level 1) | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities | ' | 197 |
Significant Other Observable Inputs (Level 2) | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities | 180,072 | 162,515 |
Significant Unobservable Inputs (Level 3) | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities | 651 | 632 |
Loans fair value | 631,615 | 695,999 |
Fair Value, Measurements, Nonrecurring | Other real estate owned, net | Commercial Real Estate | Construction | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Other Real Estate Owned | 21,008 | 19,057 |
Fair Value, Measurements, Nonrecurring | Other real estate owned, net | Commercial Real Estate | Farmland | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Other Real Estate Owned | 1,344 | 690 |
Fair Value, Measurements, Nonrecurring | Other real estate owned, net | Commercial Real Estate | Nonfarm nonresidential | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Other Real Estate Owned | 16,591 | 6,019 |
Fair Value, Measurements, Nonrecurring | Other real estate owned, net | Residential Real Estate | Multi-Family | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Other Real Estate Owned | 6,313 | 246 |
Fair Value, Measurements, Nonrecurring | Other real estate owned, net | Residential Real Estate | 1-4 Family | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Other Real Estate Owned | 11,626 | 4,880 |
Fair Value, Measurements, Nonrecurring | Impaired Loans | Commercial | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Loans fair value | 1,188 | 3,172 |
Fair Value, Measurements, Nonrecurring | Impaired Loans | Commercial Real Estate | Construction | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Loans fair value | 4,401 | 9,046 |
Fair Value, Measurements, Nonrecurring | Impaired Loans | Commercial Real Estate | Farmland | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Loans fair value | 3,728 | 4,173 |
Fair Value, Measurements, Nonrecurring | Impaired Loans | Commercial Real Estate | Nonfarm nonresidential | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Loans fair value | 37,738 | 73,426 |
Fair Value, Measurements, Nonrecurring | Impaired Loans | Residential Real Estate | Multi-Family | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Loans fair value | 4,193 | 11,724 |
Fair Value, Measurements, Nonrecurring | Impaired Loans | Residential Real Estate | 1-4 Family | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Loans fair value | 14,340 | 26,486 |
Fair Value, Measurements, Nonrecurring | Impaired Loans | Consumer | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Loans fair value | 42 | 75 |
Fair Value, Measurements, Nonrecurring | Impaired Loans | Other | Other | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Loans fair value | 106 | 618 |
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Other real estate owned, net | Commercial Real Estate | Construction | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Other Real Estate Owned | 21,008 | 19,057 |
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Other real estate owned, net | Commercial Real Estate | Farmland | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Other Real Estate Owned | 1,344 | 690 |
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Other real estate owned, net | Commercial Real Estate | Nonfarm nonresidential | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Other Real Estate Owned | 16,591 | 6,019 |
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Other real estate owned, net | Residential Real Estate | Multi-Family | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Other Real Estate Owned | 6,313 | 246 |
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Other real estate owned, net | Residential Real Estate | 1-4 Family | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Other Real Estate Owned | 11,626 | 4,880 |
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Impaired Loans | Commercial | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Loans fair value | 1,188 | 3,172 |
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Impaired Loans | Commercial Real Estate | Construction | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Loans fair value | 4,401 | 9,046 |
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Impaired Loans | Commercial Real Estate | Farmland | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Loans fair value | 3,728 | 4,173 |
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Impaired Loans | Commercial Real Estate | Nonfarm nonresidential | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Loans fair value | 37,738 | 73,426 |
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Impaired Loans | Residential Real Estate | Multi-Family | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Loans fair value | 4,193 | 11,724 |
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Impaired Loans | Residential Real Estate | 1-4 Family | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Loans fair value | 14,340 | 26,486 |
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Impaired Loans | Consumer | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Loans fair value | 42 | 75 |
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Impaired Loans | Other | Other | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Loans fair value | 106 | 618 |
Fair Value, Measurements, Recurring | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities | 180,723 | 163,344 |
Fair Value, Measurements, Recurring | Equity | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities | ' | 197 |
Fair Value, Measurements, Recurring | U.S. Government and federal agency | Debt securities | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities | 29,607 | 29,866 |
Fair Value, Measurements, Recurring | Agency mortgage-backed: residential | Debt securities | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities | 118,837 | 100,943 |
Fair Value, Measurements, Recurring | State and municipal | Debt securities | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities | 12,559 | 13,545 |
Fair Value, Measurements, Recurring | Corporate bonds | Debt securities | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities | 19,069 | 18,161 |
Fair Value, Measurements, Recurring | Other | Debt securities | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities | 651 | 632 |
Fair Value, Measurements, Recurring | Quoted Prices In Active Markets for Identical Assets (Level 1) | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities | ' | 197 |
Fair Value, Measurements, Recurring | Quoted Prices In Active Markets for Identical Assets (Level 1) | Equity | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities | ' | 197 |
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities | 180,072 | 162,515 |
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | U.S. Government and federal agency | Debt securities | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities | 29,607 | 29,866 |
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Agency mortgage-backed: residential | Debt securities | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities | 118,837 | 100,943 |
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | State and municipal | Debt securities | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities | 12,559 | 13,545 |
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Corporate bonds | Debt securities | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities | 19,069 | 18,161 |
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities | 651 | 632 |
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Other | Debt securities | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities | $651 | $632 |