Balance Sheet Components (Tables)
 6 Months Ended
Jun. 30, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Summary of Cash and Cash Equivalents

Cash and cash equivalents consist of the following:

 

     June 30,
2015		      December 31,
2014		  
     (in thousands)  

Cash

    $ 587       $ 1,307   

Cash equivalents:

      

Money market accounts

      15,213         27,847   
  

 

 

     

 

 

  

Total cash and cash equivalents

    $ 15,800       $ 29,154   
  

 

 

     

 

 

  
Summary of Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets consist of the following:

 

     June 30,
2015		      December 31,
2014		  
     (in thousands)  

Prepaid research and development project costs

    $ 414       $ 515   

Other

      368         46   
  

 

 

     

 

 

  

Total prepaid expenses and other current assets

    $ 782       $ 561   
  

 

 

     

 

 

  
Summary of Property and Equipment, Net

Property and equipment, net consists of the following:

 

     June 30,
2015		      December 31,
2014		  
     (in thousands)  

Computer equipment

    $ 140       $ 56   

Software

      11         9   

Lab equipment

      224         163   

Leasehold improvements

      75         —     
  

 

 

     

 

 

  

Property and equipment, gross

      450         228   

Less: accumulated depreciation

      (53 )       (14 ) 
  

 

 

     

 

 

  

Total property and equipment, net

    $ 397       $ 214   
  

 

 

     

 

 

  
Schedule of Other Assets

Other assets consist of the following:

 

     June 30,
2015		      December 31,
2014		  
     (in thousands)  

Deferred offering costs

    $ 3,053       $ 549   

Restricted cash

      200         75   

Deferred tax assets

      3         2   
  

 

 

     

 

 

  

Total other assets

    $ 3,256       $ 626   
  

 

 

     

 

 

  
Summary of Accrued Liabilities

Accrued liabilities consist of the following:

 

     June 30,
2015		      December 31,
2014		  
     (in thousands)  

Accrued offering costs

    $ 615       $ —     

Accrued employee related costs

      572         759   

Accrued research and development costs

      686         526   

Accrued professional fees

      408         140   

Other

      23         48   
  

 

 

     

 

 

  

Total accrued liabilities

    $ 2,304       $ 1,473