Income Taxes (Tables)
12 Months Ended
Dec. 31, 2015
Income Tax Disclosure [Abstract]  
Components of Loss Before Income Taxes

Loss before income taxes included in the consolidated statements of operations was as follows:

 

     Year Ended December 31,  
                 2015                              2014                              2013              
     (in thousands)  

United States.

     $(43,020)         $(32,937)         $(18,892)   

Foreign

     (6,341)         689         189   
  

 

 

    

 

 

    

 

 

 

Loss before income taxes

     $(49,361)         $(32,248)         $(18,703)   
  

 

 

    

 

 

    

 

 

 

Summary of Income Tax Provision

Income tax provision included in the consolidated statements of operations was as follows:

 

     Year Ended December 31,  
                 2015                              2014                              2013              
     (in thousands)  

Current:

        

Federal

     $—         $—         $—   

State and local

     116         22         24   

Foreign

     261         161         35   
  

 

 

    

 

 

    

 

 

 

Total current provision

     377         183         59   
  

 

 

    

 

 

    

 

 

 

Deferred:

        

Federal

     98         180         47   

State and local

     11         14         14   

Foreign

     10         2         50   
  

 

 

    

 

 

    

 

 

 

Total deferred expense

     119         196         111   
  

 

 

    

 

 

    

 

 

 

Total income tax provision

     $496         $379         $170   
  

 

 

    

 

 

    

 

 

 

Reconciliation of Income Taxes Computed at Federal Statutory Rate and Provision for Income Taxes

The table below reconciles the differences between income taxes computed at the federal statutory rate of 34% and our provision for income taxes:

 

     Year Ended December 31,  
                 2015                              2014                              2013              

Expected income tax

     34.0%         34.0%         34.0%   

State taxes, net of federal benefit

     (0.1)         (0.1)         (0.1)   

Permanent differences

     (3.0)         (0.5)         (1.2)   

Federal research and development credit

     0.6         0.8         1.5   

Foreign rate differential

     (3.3)         0.2         0.1   

Change in valuation allowance

     (29.9)         (35.6)         (35.0)   

Other

     0.7                 (0.2)   
  

 

 

    

 

 

    

 

 

 

Total income tax provision

     (1.0)%         (1.2)%         (0.9)%   
  

 

 

    

 

 

    

 

 

 

 

Components of Net Deferred Tax Assets and Liabilities

Net deferred tax assets and liabilities, as set forth in the table below, reflect the impact of temporary differences between the amounts of assets and liabilities recorded for financial statement purposes and such amounts measured in accordance with tax laws:

 

     As of December 31,  
                 2015                              2014              
     (in thousands)  

Deferred tax assets:

    

Accruals and reserves

     $300        $734   

Net operating loss carryforwards

     37,744        26,640   

Deferred revenue

     9,971        7,512   

Amortization

     3,318        5,570   

Research and development credits

     1,269        829   

Stock-based compensation

     2,436        1,905   

Other

     3,312        2,129   
  

 

 

   

 

 

 

Total gross deferred tax asset

     58,350        45,319   

Less valuation allowance

     (58,328)        (45,314)   
  

 

 

   

 

 

 

Net deferred tax assets

     22        5   

Deferred tax liabilities:

    

Intangible assets

     (417)        (317)   

Depreciation

     (51)        (15)   
  

 

 

   

 

 

 

Total deferred tax liabilities

     (468)        (332)   
  

 

 

   

 

 

 

Total net deferred tax liabilities

     $(446)        $(327)   
  

 

 

   

 

 

 

Changes in Reserves for Unrecognized Income Tax Benefits

Changes in our reserves for unrecognized income tax benefits are as follows:

 

    Year Ended December 31,  
                2015                             2014              
    (in thousands)  

Beginning balance

    $35        $35   

Additions based on current year tax positions

    106          
 

 

 

   

 

 

 

Ending balance

    $141        $35