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 ($)
Mar. 31, 2018
Jun. 30, 2017
Payables and Accruals [Abstract]    
Accounts payable $ 127,540 $ 494,515
Accrued salaries and benefits 337,157 274,050
Accrued bonuses 420,136
Accrued stock-based compensation to contractors 562,903 399,157
Other accrued expenses 460,924 168,646
Totals $ 1,908,660 $ 1,336,368