Summary of Significant Accounting Policies (Details) - USD ($)	3 Months Ended	9 Months Ended
	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016	Jun. 30, 2016
Significant Accounting Policies [Line Items]
Highly liquid investments, original maturity period		3 months
Deferred Tax Assets, Operating Loss Carryforwards, Domestic				$ 288,700,000
Deferred Tax Assets, Operating Loss Carryforwards, State and Local				$ 108,500,000
Income tax benefit	$ 1,871,772		$ 5,056,772
Liability for uncertain tax positions		$ 0
Common stock equivalents excluded from the diluted per share calculation		31,893,172	27,668,571
New Jersey Division of Taxation [Member]
Significant Accounting Policies [Line Items]
Income tax benefit	1,900,000		$ 5,100,000
Net operating loss sold amount	30,300,000		66,200,000
NOLs and/or R&D tax credits sold		$ 0
New Jersey Division of Taxation [Member] | Research Tax Credit Carryforward [Member]
Significant Accounting Policies [Line Items]
Research and development credits sold amount	$ 200,000		$ 1,500,000
Minimum
Significant Accounting Policies [Line Items]
Operating Loss Carry Forward Expiration Year		2017
Maximum
Significant Accounting Policies [Line Items]
Operating Loss Carry Forward Expiration Year		2036