Consolidated Statements of Cash Flows (unaudited) - USD ($)	9 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (43,689,207)	$ (23,648,409)
Change in value of derivatives	(432,141)	(1,519,513)
Stock-based compensation	5,818,119	5,881,901
Depreciation and amortization	3,470,880	3,535,915
Amortization/(accretion) of note premiums	582,373	(140,041)
Changes in operating assets and liabilities:
Accounts receivable	52,822	(862,313)
Prepaid expenses and Other Current Assets	856,253	3,176,551
Deferred revenue	(4,326,540)	8,796,246
Accounts payable	(1,910,782)	(4,353,087)
Accrued expenses	(4,652,873)	(5,337,827)
Other	(312,003)	(264,921)
NET CASH PROVIDED BY (USED IN) OPERATING ACTIVITIES	(44,543,099)	(14,735,498)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(711,779)	(7,810,754)
Purchases of marketable securities	(47,174,620)	(39,904,676)
Proceeds from sale of marketable securities	37,204,420	3,289,963
NET CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES	(10,681,979)	(44,425,467)
CASH FLOWS FROM FINANCING ACTIVITIES:
Principal payments on notes payable	(154,986)	(97,145)
Payments of taxes for net share settled restricted stock unit issuances	(54,667)	(417,140)
Proceeds from the exercises of warrants and stock options	2,006,515	272,818
Proceeds from the issuance of common stock	56,585,035	12,419,119
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	58,381,897	12,177,652
NET INCREASE (DECREASE) IN CASH	3,156,819	(46,983,313)
CASH AT BEGINNING OF PERIOD	24,838,567	85,366,448
CASH AT END OF PERIOD	27,995,386	38,383,135
Supplementary disclosures:
Interest Paid	(131,429)	(142,033)
Income Tax Credits Refunded		3,635,016
Income Tax Paid	$ (2,400)	$ (2,400)