Basic and Diluted Net Income (Loss) Per Common Share - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Details) - shares |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Dec. 31, 2017 |
Dec. 31, 2016 |
Sep. 30, 2017 |
Sep. 30, 2016 |
|
| Common shares not included in calculating diluted net loss per share | 833,333 | 1,861,111 | 17,419,441 | 17,768,807 |
| Stock Options [Member] | ||||
| Common shares not included in calculating diluted net loss per share | 15,494,108 | 15,907,696 | ||
| Unvested Restricted Stock [Member] | ||||
| Common shares not included in calculating diluted net loss per share | 1,092,000 | |||
| 5% Convertible Notes [Member] | ||||
| Common shares not included in calculating diluted net loss per share | 833,333 | 1,861,111 | 833,333 | 1,861,111 |