Summary of significant accounting policies (Details) - USD ($) |
Jun. 30, 2018 |
Jun. 30, 2017 |
|---|---|---|
| Additional paid in capital | $ 52,074,343 | $ 31,499,889 |
| Accumulated deficit | $ (38,246,684) | (16,508,057) |
| Previously Reported [Member] | ||
| Additional paid in capital | 30,774,885 | |
| Accumulated deficit | (15,783,053) | |
| Revisions [Member] | ||
| Additional paid in capital | 725,004 | |
| Accumulated deficit | $ (725,004) |
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- Definition Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The cumulative amount of the reporting entity's undistributed earnings or deficit. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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