15. QUARTERLY INFORMATION (Details) - USD ($)	3 Months Ended								12 Months Ended
	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013
Quarterly Information Details
Grant income and other	$ (66,304)	$ 389,223	$ 197,620	$ 136,838	$ 67,818	$ 15,914	$ 67,157	$ 113,144	$ 657,377	$ 264,033	$ 159,583
Operating expenses	8,273,682	8,590,698	7,956,963	10,132,579	8,579,856	6,917,243	6,293,592	6,047,454	34,953,922	27,838,145	20,027,859
Non-operating (expense) income, net	22,369	(15,166)	(14,097)	(12,547)	(12,271)	(10,927)	(6,797)	(10,925)	(19,441)	(40,920)
Gain (loss) on derivative instruments	(1,526,338)	4,428,780	(4,782,796)	2,162,970	1,302,522	4,467,776	(7,132,348)	1,610,817	282,616	248,767
Loss on debt extinguishment	0	(641,276)	0	0					(641,276)	0	0
Net loss					(7,221,787)	(2,444,480)	(13,365,580)	(4,334,418)	(34,674,646)	(27,366,265)	(9,170,947)
Issuance of shares due to reset provisions					0	0	0	(1,117,447)		(1,117,447)
Net loss available to common shareholders	$ (9,843,955)	$ (4,429,137)	$ (12,556,236)	$ (7,845,318)	$ (7,221,787)	$ (2,444,480)	$ (13,365,580)	$ (5,451,865)	$ (34,674,646)	$ (28,483,712)	$ (9,230,478)
Net loss per share-basic	$ (0.10)	$ (0.05)	$ (0.17)	$ (0.11)	$ (0.11)	$ (0.04)	$ (0.24)	$ (0.11)	$ (0.42)	$ (0.48)	$ (0.30)
Net loss per share-diluted	$ (0.10)	$ (0.06)	$ (0.17)	$ (0.14)	$ (0.13)	$ (0.11)	$ (0.24)	$ (0.15)	$ (0.42)	$ (0.49)	$ (0.66)
Weighted average shares-basic and diluted					66,091,826	64,664,274	56,239,562	48,215,919	82,519,027	58,804,622	30,279,442
Weighted average shares-basic	97,040,004	83,796,311	75,847,869	73,260,783					82,519,027
Weighted average shares-diluted	97,040,004	85,134,107	75,847,869	73,260,783					82,519,027