Annual report pursuant to Section 13 and 15(d)

Share-based Compensation - Stock Based Compensation (Detail)

v2.4.1.9
Share-based Compensation - Stock Based Compensation (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Share-based Compensation [Abstract]    
Restricted share expense $ 218us-gaap_RestrictedStockExpense $ 586us-gaap_RestrictedStockExpense
Stock option expense 358us-gaap_StockOptionPlanExpense 534us-gaap_StockOptionPlanExpense
Total stock-based compensation expense $ 576us-gaap_ShareBasedCompensation $ 1,120us-gaap_ShareBasedCompensation