Subsequent Events (Details) - $ / shares |
3 Months Ended | 12 Months Ended | |||
|---|---|---|---|---|---|
Oct. 02, 2017 |
Aug. 31, 2017 |
May 31, 2017 |
Feb. 28, 2017 |
Nov. 30, 2016 |
|
| Subsequent Event [Line Items] | |||||
| Options granted (shares) | 232,500 | 0 | 0 | 519,000 | |
| Exercise price of options granted (usd per share) | $ 3.30 | $ 0.00 | $ 3.23 | ||
| Subsequent Event | Director | |||||
| Subsequent Event [Line Items] | |||||
| Options granted (shares) | 75,000 | ||||
| Exercise price of options granted (usd per share) | $ 3.30 | ||||