Stockholders' Equity (Details 4) - $ / shares
|
9 Months Ended |
|
Nov. 30, 2017 |
Feb. 28, 2017 |
| Warrants outstanding |
2,684,582
|
1,647,670
|
| Warrants outstanding, Weighted Average Exercise Price |
$ 7.16
|
$ 2.91
|
| Warrants exercisable |
966,250
|
|
| Exercise Prices 0.80 [Member] |
|
|
| Warrants outstanding |
912,082
|
|
| Warrants outstanding, Average Remaining Contractual Life (in years) |
6 years 2 months 16 days
|
|
| Warrants outstanding, Weighted Average Exercise Price |
$ 0.80
|
|
| Warrants exercisable |
594,582
|
|
| Warrants exercisable, Average Remaining Contractual Life (in years) |
6 years 3 months 26 days
|
|
| Warrants exercisable, Weighted Average Exercise Price |
$ 0.80
|
|
| Exercise Prices 3.00 [Member] |
|
|
| Warrants outstanding |
12,500
|
|
| Warrants outstanding, Average Remaining Contractual Life (in years) |
6 months
|
|
| Warrants outstanding, Weighted Average Exercise Price |
$ 3.00
|
|
| Warrants exercisable |
12,500
|
|
| Warrants exercisable, Average Remaining Contractual Life (in years) |
6 months
|
|
| Warrants exercisable, Weighted Average Exercise Price |
$ 3.00
|
|
| Exercise Prices 5.25 [Member] |
|
|
| Warrants outstanding |
530,000
|
|
| Warrants outstanding, Average Remaining Contractual Life (in years) |
9 years 8 months 26 days
|
|
| Warrants outstanding, Weighted Average Exercise Price |
$ 5.25
|
|
| Warrants exercisable |
36,250
|
|
| Warrants exercisable, Average Remaining Contractual Life (in years) |
9 years 8 months 26 days
|
|
| Warrants exercisable, Weighted Average Exercise Price |
$ 5.25
|
|
| Exercise Prices 12.00 [Member] |
|
|
| Warrants outstanding |
700,000
|
|
| Warrants outstanding, Average Remaining Contractual Life (in years) |
9 years 9 months 14 days
|
|
| Warrants outstanding, Weighted Average Exercise Price |
$ 12.00
|
|
| Warrants exercisable |
216,668
|
|
| Warrants exercisable, Average Remaining Contractual Life (in years) |
9 years 9 months 14 days
|
|
| Warrants exercisable, Weighted Average Exercise Price |
$ 12.00
|
|
| Exercise Prices 13.49 [Member] |
|
|
| Warrants outstanding |
250,000
|
|
| Warrants outstanding, Average Remaining Contractual Life (in years) |
9 years 10 months 17 days
|
|
| Warrants outstanding, Weighted Average Exercise Price |
$ 13.49
|
|
| Warrants exercisable |
106,250
|
|
| Warrants exercisable, Average Remaining Contractual Life (in years) |
9 years 10 months 17 days
|
|
| Warrants exercisable, Weighted Average Exercise Price |
$ 13.49
|
|
| Exercise Prices 13.89 [Member] |
|
|
| Warrants outstanding |
280,000
|
|
| Warrants outstanding, Average Remaining Contractual Life (in years) |
9 years 11 months 8 days
|
|
| Warrants outstanding, Weighted Average Exercise Price |
$ 13.89
|
|
| Warrants exercisable |
|
|
| Warrants exercisable, Weighted Average Exercise Price |
|
|