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
 6 Months Ended
Sep. 30, 2018
USD ($)
Convertible note embedded derivative liability  
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]  
March 31, 2018 $ 4,676
September 30, 2018 1,728
Warrant liability  
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]  
March 31, 2018 3,980
September 30, 2018 1,484
Convertible note embedded derivative liability  
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]  
March 31, 2018 4,676
September 30, 2018 1,728
Warrant liability  
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]  
March 31, 2018 3,980
September 30, 2018 1,484
Level 3 | Convertible note embedded derivative liability  
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]  
March 31, 2018 4,676
September 30, 2018 1,728
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]  
March 31, 2018 4,676
Change in fair value of convertible note embedded derivative liability (2,572)
Derecognition on extinguishment or conversion (376)
September 30, 2018 1,728
Level 3 | Warrant liability  
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]  
March 31, 2018 3,980
September 30, 2018 1,484
Level 3 | Warrant liability | Warrant liability  
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]  
March 31, 2018 3,980
Change in fair value of convertible note embedded derivative liability (2,496)
September 30, 2018 $ 1,484