Commitments and contingencies (Details) |
12 Months Ended |
|---|---|
|
Jun. 30, 2017
USD ($)
| |
| Commitments and Contingencies Disclosure [Abstract] | |
| Year 1 | $ 5,960,000 |
| Year 2 | 3,973,333 |
| Year 3 | $ 1,986,667 |
| X | ||||||||||
- Definition Represent information about the maximum penalty imposed for year. No definition available.
|
| X | ||||||||||
- Definition Represent information about the maximum penalty imposed for year. No definition available.
|
| X | ||||||||||
- Definition Represent information about the maximum penalty imposed for year. No definition available.
|
| X | ||||||||||
- References No definition available.
|