Accounting for Share-Based Payments - Equity Incentive Plan (Details) - USD ($)	3 Months Ended		9 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Stock based compensation expense
Total stock based compensation expense	$ 554,472	$ 227,700	$ 1,483,156	$ 473,084
Equity Incentive Plan
Accounting for Shared-Based Payments
Number of shares of common stock initially reserved for issuance, pursuant to the Plan	6,500,000		6,500,000
General and administrative
Stock based compensation expense
Total stock based compensation expense	$ 225,923	187,964	$ 962,392	515,778
Research and development
Stock based compensation expense
Total stock based compensation expense	$ 328,549	$ 39,736	$ 520,764	$ (42,694)
Stock options | Equity Incentive Plan
Accounting for Shared-Based Payments
Vesting period for stock options granted under the plan			3 years
Contractual term of stock options			10 years