Quarterly report pursuant to Section 13 or 15(d)

Classification of Compensation Expense Associated with Share-Based Payments (Detail)

v2.4.0.8
Classification of Compensation Expense Associated with Share-Based Payments (Detail) (USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Allocated Share-based Compensation Expense $ 276,000 $ 380,000 $ 586,000 $ 748,000
Cost of Revenue
       
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Allocated Share-based Compensation Expense 41,000 74,000 87,000 154,000
Sales and Marketing
       
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Allocated Share-based Compensation Expense 112,000 150,000 237,000 289,000
General and Administrative
       
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Allocated Share-based Compensation Expense 101,000 119,000 216,000 234,000
Engineering and Development
       
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Allocated Share-based Compensation Expense $ 22,000 $ 37,000 $ 46,000 $ 71,000