Consolidated Statements of Changes in Stockholders' (Deficit) Equity - USD ($)	Common Stock [Member]	Capital Contributed in Excess of Par [Member]	Treasury Stock [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive (Loss) Income [Member]	Noncontrolling Interest [Member]	Total
Beginning balance at Jun. 30, 2013	$ 828,411	$ 265,688,408	$ (458,370)	$ (226,039,812)	$ 161,830	$ (385,017)	$ 39,795,450
Beginning balance, Shares at Jun. 30, 2013	82,841,123
Issuance of common stock, net	$ 95,465	29,713,983					29,809,448
Issuance of common stock, Shares	9,546,474
Exercise of stock options, net	$ 5,357	1,793,996					$ 1,799,353
Exercise of stock options, Shares	535,730						535,730
Stock based compensation	$ 1,901	2,884,417					$ 2,886,318
Stock based compensation, Shares	190,153
Other comprehensive income (loss)					100,007		100,007
Net loss				(35,425,826)		(105,352)	(35,531,178)
Ending balance at Jun. 30, 2014	$ 931,134	300,080,804	(458,370)	(261,465,638)	261,837	(490,369)	38,859,398
Ending balance, Shares at Jun. 30, 2014	93,113,480
Exercise of stock options, net	$ 12,026	2,947,904					$ 2,959,930
Exercise of stock options, Shares	1,202,575						1,202,575
Stock based compensation	$ 2,305	2,200,646					$ 2,202,951
Stock based compensation, Shares	230,523
Other comprehensive income (loss)					(422,929)		(422,929)
Net loss				(48,002,366)		(121,605)	(48,123,971)
Ending balance at Jun. 30, 2015	$ 945,465	305,229,354	(458,370)	(309,468,004)	(161,092)	(611,974)	(4,524,621)
Ending balance, Shares at Jun. 30, 2015	94,546,578
Exercise of stock options, net	$ 10,975	2,721,987					$ 2,732,962
Exercise of stock options, Shares	1,097,500						1,097,500
Stock based compensation	$ 2,232	3,369,310					$ 3,371,542
Stock based compensation, Shares	223,220
Other comprehensive income (loss)					28,866		28,866
Net loss				(59,036,950)		(98,766)	(59,135,716)
Ending balance at Jun. 30, 2016	$ 958,672	$ 311,320,651	$ (458,370)	$ (368,504,954)	$ (132,226)	$ (710,740)	$ (57,526,967)
Ending balance, Shares at Jun. 30, 2016	95,867,298