Stock warrants (Details) - Stock Warrant [Member] - $ / shares |
3 Months Ended | 12 Months Ended | |
|---|---|---|---|
Sep. 30, 2017 |
Jun. 30, 2017 |
Jun. 30, 2016 |
|
| Number of Shares | |||
| Outstanding | 505,000 | 131,250 | 131,250 |
| Granted | 505,000 | ||
| Exercised | |||
| Forfeited | 131,250 | ||
| Outstanding | 505,000 | 505,000 | 131,250 |
| Weighted Average Exercise Price | |||
| Outstanding | $ 0.15 | $ 0.20 | $ 0.20 |
| Granted | 0.15 | ||
| Exercised | 0.20 | ||
| Outstanding | $ 0.15 | $ 0.15 | $ 0.20 |
| Weighted Average Remaining contractual life | |||
| Granted | 4 years | ||
| Outstanding | 3 years 7 months 10 days | 3 years 10 months 9 days | |