Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Rollforward (Details)

v3.10.0.1
Fair Value Measurements - Rollforward (Details)
$ in Thousands
 3 Months Ended
Jun. 30, 2018
USD ($)
Convertible note embedded derivative liability  
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]  
Balance at March 31, 2018 $ 4,676
June 30, 2018 3,056
Warrant liability  
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]  
Balance at March 31, 2018 3,980
June 30, 2018 2,410
Convertible note embedded derivative liability  
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]  
Balance at March 31, 2018 4,676
June 30, 2018 3,056
Warrant liability  
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]  
Balance at March 31, 2018 3,980
June 30, 2018 2,410
Level 3 | Convertible note embedded derivative liability  
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]  
Balance at March 31, 2018 4,676
June 30, 2018 3,056
Level 3 | Convertible note embedded derivative liability | Convertible note embedded derivative liability  
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]  
Balance at March 31, 2018 4,676
Change in fair value of convertible note embedded derivative liability 1,620
June 30, 2018 3,056
Level 3 | Warrant liability  
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]  
Balance at March 31, 2018 3,980
June 30, 2018 2,410
Level 3 | Warrant liability | Warrant liability  
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]  
Balance at March 31, 2018 3,980
Change in fair value of convertible note embedded derivative liability (1,570)
June 30, 2018 $ 2,410