Fair Value Measurements - Financial Liabilities (Details) - USD ($)
$ in Thousands |
Sep. 30, 2017 |
Mar. 31, 2017 |
Sep. 28, 2016 |
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
| Financial liabilities |
$ 7,820
|
$ 4,294
|
$ 4,916
|
| Level 1 |
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
| Financial liabilities |
0
|
0
|
0
|
| Level 2 |
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
| Financial liabilities |
0
|
0
|
0
|
| Level 3 |
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
| Financial liabilities |
7,820
|
4,294
|
4,916
|
| Convertible note embedded derivative liability |
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
| Derivative Liability |
5,116
|
3,218
|
3,693
|
| Convertible note embedded derivative liability | Level 1 |
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
| Derivative Liability |
0
|
0
|
0
|
| Convertible note embedded derivative liability | Level 2 |
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
| Derivative Liability |
0
|
0
|
0
|
| Convertible note embedded derivative liability | Level 3 |
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
| Derivative Liability |
|
3,218
|
3,693
|
| Warrant liability |
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
| Derivative Liability |
2,704
|
1,076
|
1,223
|
| Warrant liability | Level 1 |
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
| Derivative Liability |
0
|
0
|
0
|
| Warrant liability | Level 2 |
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
| Derivative Liability |
0
|
0
|
0
|
| Warrant liability | Level 3 |
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
| Derivative Liability |
|
1,076
|
$ 1,223
|
| Warrant liability | Warrant liability | Level 3 |
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
| Derivative Liability |
$ 2,704
|
$ 1,076
|
|