Consolidated Statements of Cash Flows - USD ($)	3 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ 12,037,253	$ (13,198,878)
Change in value of derivatives		(450,739)
Stock-based compensation	2,717,534	2,092,541
Depreciation and amortization	1,177,352	1,141,173
Amortization/(accretion) of note premiums	(156,637)	107,783
Changes in operating assets and liabilities:
Accounts receivable	(2,841,204)	(82,134)
Prepaid expenses and Other Current Assets	(120,912)	(29,223)
Deferred revenue	158,096,440	(3,394,740)
Accounts payable	1,130,491	1,630,533
Accrued expenses	(3,489,712)	(2,550,703)
Other	(265,842)	43,907
NET CASH PROVIDED BY (USED IN) OPERATING ACTIVITIES	168,284,763	(14,690,480)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(737,487)	(135,414)
Purchases of marketable securities	(69,271,001)	(5,018,040)
Proceeds from sale of marketable securities	2,252,219	6,510,420
NET CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES	(67,756,269)	1,356,966
CASH FLOWS FROM FINANCING ACTIVITIES:
Principal payments on notes payable	(2,415,149)	(197,790)
Proceeds from the exercises of warrants and stock options	1,004,694	224,082
Proceeds from the issuance of common stock	60,521,729
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	59,111,274	26,292
NET INCREASE (DECREASE) IN CASH	159,639,768	(13,307,222)
CASH AT BEGINNING OF PERIOD	30,133,213	24,838,567
CASH AT END OF PERIOD	189,772,981	11,531,345
Supplementary disclosures:
Interest Paid	$ (27,437)	$ (44,722)