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Stock-Based Compensation - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Aggregate intrinsic value of option outstanding and exercisable $ 105 $ 13  
Unrecognized compensation cost related to nonvested stock options granted 0 0  
Fair value of shares vesting during period 323 206 173
Restricted Stock Awards [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Compensation Expense 390 277 213
Unvested Restricted Stock Awards [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Unrecognized compensation cost related to nonvested stock options granted 0    
Total unrecognized compensation cost $ 675 $ 536