Loans and Allowance for Loan Losses - Schedule of Analysis of Non-Accruing Loans (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total loans $ 10,565 $ 23,618
Construction, Land Development and Other Land Loans [Member]
   
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total loans 2,337 11,456
Secured by 1-4 Family Residential Properties [Member]
   
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total loans 1,952 2,441
Secured by Multi-family Residential Properties [Member]
   
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total loans 1,286 2,884
Secured by Non-farm, Non-residential Properties [Member]
   
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total loans 4,435 5,809
Commercial and Industrial Loans [Member]
   
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total loans 479 822
Consumer Loans [Member]
   
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total loans $ 76 $ 206