Long-Term Debt - Summary of Information Concerning FHLB Advances and Other Borrowings (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Debt Disclosure [Abstract]    
Balance at year-end $ 5,000 $ 0
Average balance during the year 1,890 4,918
Maximum month-end balance during the year $ 5,000 $ 20,000
Average rate paid during the year 0.58% 2.30%
Weighted average remaining maturity 1 year 8 months 1 day