Basic and Diluted Net Loss Per Common Share - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Details) - shares |
3 Months Ended | |
|---|---|---|
Jun. 30, 2017 |
Jun. 30, 2016 |
|
| Common shares not included in calculating diluted net loss per share | 18,489,341 | 18,200,197 |
| Stock Options [Member] | ||
| Common shares not included in calculating diluted net loss per share | 15,564,008 | 16,339,086 |
| 5% Convertible Notes [Member] | ||
| Common shares not included in calculating diluted net loss per share | 1,833,333 | 1,861,111 |
| Unvested Restricted Stock [Member] | ||
| Common shares not included in calculating diluted net loss per share | 1,092,000 | |