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Borrowings - Schedule of Remaining Borrowing Capacity with FHLB (Detail) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Borrowings Under Repurchase Agreements [Line items]    
Borrowings $ 65,000 $ 64,296
Interest Rate 2.09% [Member]
    
Borrowings Under Repurchase Agreements [Line items]    
Borrowings 20,000 20,000
Maturity date Sep. 17, 2015  
Interest Rate 4.60% [Member]
    
Borrowings Under Repurchase Agreements [Line items]    
Borrowings 10,000 10,000
Maturity date Jun. 01, 2017  
Interest Rate 4.02% [Member]
    
Borrowings Under Repurchase Agreements [Line items]    
Borrowings 5,000 5,000
Maturity date Aug. 07, 2017  
Interest Rate 4.10% [Member]
    
Borrowings Under Repurchase Agreements [Line items]    
Borrowings 5,000 5,000
Maturity date Aug. 07, 2017  
Interest Rate 4.47% [Member]
    
Borrowings Under Repurchase Agreements [Line items]    
Borrowings 10,000 10,000
Maturity date Aug. 07, 2017  
Interest Rate 3.97% [Member]
    
Borrowings Under Repurchase Agreements [Line items]    
Borrowings 10,000 10,000
Maturity date Oct. 10, 2017  
Interest Rate 4.72% [Member]
    
Borrowings Under Repurchase Agreements [Line items]    
Borrowings 700 700
Maturity date Jul. 07, 2023  
Interest Rate 4.31% [Member]
    
Borrowings Under Repurchase Agreements [Line items]    
Borrowings 2,280 2,388
Maturity date Sep. 05, 2023  
Interest Rate 5.24% [Member]
    
Borrowings Under Repurchase Agreements [Line items]    
Borrowings 535 557
Maturity date Jun. 11, 2024  
Interest Rate 3.35% [Member]
    
Borrowings Under Repurchase Agreements [Line items]    
Borrowings 302 321
Maturity date May 24, 2026  
Interest Rate 4.00% [Member]
    
Borrowings Under Repurchase Agreements [Line items]    
Borrowings 311 330
Maturity date Oct. 14, 2026  
Interest Rate 3.23% [Member]
    
Borrowings Under Repurchase Agreements [Line items]    
Borrowings $ 872 $ 0
Maturity date Feb. 11, 2033