Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Reconciliation of Financial Liabilities Measured at Fair Value (Details)

v3.10.0.1
Fair Value Measurements - Reconciliation of Financial Liabilities Measured at Fair Value (Details)
$ in Thousands
 9 Months Ended
Dec. 31, 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
December 31, 2018 3,113
Warrant liability  
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]  
March 31, 2018 3,980
December 31, 2018 3,135
Convertible note embedded derivative liability  
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]  
March 31, 2018 4,676
December 31, 2018 3,113
Warrant liability  
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]  
March 31, 2018 3,980
December 31, 2018 3,135
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
December 31, 2018 3,113
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 (1,096)
Derecognition on extinguishment or conversion (467)
December 31, 2018 3,113
Level 3 | Warrant liability  
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]  
March 31, 2018 3,980
December 31, 2018 3,135
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 (845)
December 31, 2018 $ 3,135