Geographic Segments - (Details) - USD ($)	3 Months Ended		9 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015	Jun. 30, 2015
Segment Reporting Information [Line Items]
Total assets	$ 67,641,541	$ 111,834,000	$ 67,641,541	$ 111,834,000	$ 105,779,606
Property and equipment, net	3,167,554	2,065,000	3,167,554	2,065,000	$ 2,241,838
Revenues	899,079	1,182,698	2,301,061	3,257,487
Loss before taxes	(15,893,448)	(11,784,823)	(48,267,109)	(35,654,380)
United States [Member]
Segment Reporting Information [Line Items]
Total assets	66,324,000	110,600,000	66,324,000	110,600,000
Property and equipment, net	3,099,000	2,056,000	3,099,000	2,056,000
Revenues	356,000	489,000	587,000	1,110,000
Loss before taxes	(15,789,000)	(11,762,000)	(47,977,000)	(35,733,000)
Europe [Member]
Segment Reporting Information [Line Items]
Total assets	1,318,000	1,234,000	1,318,000	1,234,000
Property and equipment, net	69,000	9,000	69,000	9,000
Revenues	543,000	694,000	1,714,000	2,147,000
Loss before taxes	$ (104,000)	$ (23,000)	$ (290,000)	$ 79,000