Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Rollforward (Details)

v3.8.0.1
Fair Value Measurements - Rollforward (Details)
$ in Thousands
 12 Months Ended
Mar. 31, 2018
USD ($)
Convertible note embedded derivative liability  
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]  
March 31, 2017 $ 3,218
March 31, 2018 4,676
Warrant liability  
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]  
March 31, 2017 1,076
March 31, 2018 3,980
Level 3 | Convertible note embedded derivative liability  
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]  
March 31, 2017 3,218
March 31, 2018 4,676
Level 3 | Warrant liability  
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]  
March 31, 2017 1,076
March 31, 2018 3,980
Convertible note embedded derivative liability  
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]  
March 31, 2017 3,218
March 31, 2018 4,676
Convertible note embedded derivative liability | Level 3 | Convertible note embedded derivative liability  
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]  
March 31, 2017 3,218
Change in fair value 7,559
Derecognition (6,101)
March 31, 2018 4,676
Warrant liability  
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]  
March 31, 2017 1,076
March 31, 2018 3,980
Warrant liability | Level 3 | Warrant liability  
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]  
March 31, 2017 1,076
Change in fair value 3,208
Derecognition (304)
March 31, 2018 $ 3,980