Quarterly report pursuant to Section 13 or 15(d)

Accounts payable and accrued expenses (Details)

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Accounts payable and accrued expenses (Details) - USD ($)
Dec. 31, 2017
Jun. 30, 2017
Payables and Accruals [Abstract]    
Accounts payable $ 1,054,169 $ 494,515
Accrued salaries and benefits 141,020 274,050
Accrued bonuses 362,589
Accrued stock-based compensation 678,116 399,157
Accrued capital expenditures 428,691
Other accrued expenses 362,746 168,646
Totals $ 3,027,331 $ 1,336,368