Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements, On Recurring Basis (Details)

v3.2.0.727
Fair Value Measurements, On Recurring Basis (Details) - Recurring [Member] - USD ($)
$ in Thousands
Jun. 30, 2015
Dec. 31, 2014
Assets: [Abstract]    
Money market funds [1] $ 32,079 $ 67,569
Foreign exchange options [2]   6
Total 32,079 67,575
Liabilities: [Abstract]    
Contingent warrant liabilities 28,956 31,828
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]    
Assets: [Abstract]    
Money market funds [1] 32,079 67,569
Foreign exchange options [2]   0
Total 32,079 67,569
Liabilities: [Abstract]    
Contingent warrant liabilities 0 0
Significant Other Observable Inputs (Level 2) [Member]    
Assets: [Abstract]    
Money market funds [1] 0 0
Foreign exchange options [2]   6
Total   6
Liabilities: [Abstract]    
Contingent warrant liabilities 0 0
Significant Unobservable Inputs (Level 3) [Member]    
Assets: [Abstract]    
Money market funds [1] 0 0
Foreign exchange options [2]   0
Total   0
Liabilities: [Abstract]    
Contingent warrant liabilities $ 28,956 $ 31,828
[1] Included in cash and cash equivalents.
[2] Included in other assets