Stockholders' Equity (Details 3)
|
9 Months Ended |
|
Nov. 30, 2017
$ / shares
shares
|
|---|
| Number of Warrant Shares |
|
| Balance, beginning | shares |
1,647,670
|
| Granted | shares |
2,310,000
|
| Forfeited | shares |
(515,418)
|
| Exercised | shares |
(213,770)
|
| Expired | shares |
(543,900)
|
| Balance, ending | shares |
2,684,582
|
| Earned and exercisable, November 30, 2017 | shares |
966,250
|
| Unvested, November 30, 2017 | shares |
1,718,332
|
| Weighted Average Exercise Price |
|
| Balance, beginning |
$ 2.91
|
| Granted |
9.23
|
| Forfeited |
4.95
|
| Exercised |
5.52
|
| Expired |
5.86
|
| Balance, ending |
7.16
|
| Earned and exercisable, November 30, 2017 |
4.90
|
| Unvested, November 30, 2017 |
8.42
|
| Minimum [Member] |
|
| Exercise Price Range Per Share |
|
| Balance, beginning |
0.80
|
| Granted |
5.25
|
| Forfeited |
0.80
|
| Exercised |
0.80
|
| Expired |
5.25
|
| Balance, ending |
0.80
|
| Earned and exercisable, November 30, 2017 |
0.80
|
| Unvested, November 30, 2017 |
0.80
|
| Maximum [Member] |
|
| Exercise Price Range Per Share |
|
| Balance, beginning |
6.00
|
| Granted |
13.89
|
| Forfeited |
5.25
|
| Exercised |
6.00
|
| Expired |
6.00
|
| Balance, ending |
13.89
|
| Earned and exercisable, November 30, 2017 |
13.49
|
| Unvested, November 30, 2017 |
$ 13.89
|