Quarterly report pursuant to Section 13 or 15(d)

Share-Based Payments - Additional Information (Detail)

v3.4.0.3
Share-Based Payments - Additional Information (Detail) - USD ($)
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock compensation expense $ 40,000 $ 50,000