Consolidated Statements of Cash Flows (unaudited) - USD ($)	6 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (18,128,667)	$ (40,080,274)
Change in value of derivatives	(1,456,448)	(346,411)
Stock-based compensation	4,168,673	4,797,182
Depreciation and amortization	2,373,255	1,598,261
Amortization/(accretion) of note premiums	(64,387)	179,460
Changes in operating assets and liabilities:
Accounts receivable	(505,825)	(25,163)
Prepaid expenses and Other Current Assets	2,524,107	(616,677)
Deferred revenue	17,307,431	(37,500)
Accounts payable	(4,988,620)	2,510,792
Accrued expenses	(5,415,933)	(4,065,854)
Other	(139,452)	190,280
NET CASH PROVIDED BY (USED IN) OPERATING ACTIVITIES	(4,325,866)	(35,895,904)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(6,653,158)	(500,634)
Purchases of marketable securities	(24,846,105)
Proceeds from sale of marketable securities		6,200,000
NET CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES	(31,499,263)	5,699,366
CASH FLOWS FROM FINANCING ACTIVITIES:
Principal payments on capital leases and notes payable	(97,145)	(108,326)
Payments of taxes for net share settled restricted stock unit issuances	(417,140)	(634,187)
Proceeds from the issuance of common stock	12,691,937	25,544
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	12,177,652	(716,969)
NET INCREASE (DECREASE) IN CASH	(23,647,477)	(30,913,507)
CASH AT BEGINNING OF PERIOD	85,366,448	81,214,354
CASH AT END OF PERIOD	61,718,971	50,300,847
Supplementary disclosures:
Interest Paid	(95,544)	(5,797)
Income Tax Credits Refunded	3,635,016	1,365,288
Income Tax Paid	$ (2,400)	$ (2,400)