CONDENSED BALANCE SHEETS (Unaudited) - USD ($)	Sep. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 58,875,925	$ 22,261,372
Short-term investments	0	35,035,420
Receivables	108,345	4,621,605
Prepaid expenses and other current assets	2,618,919	2,373,708
Total current assets	61,603,189	64,292,105
Equipment and furnishings, net	2,066,392	1,467,681
Goodwill	183,780	183,780
Other assets	54,648	1,080,872
Total assets	63,908,009	67,024,438
Current liabilities:
Accounts payable	4,815,597	8,058,624
Accrued expenses and other current liabilities	5,049,006	9,693,359
Litigation settlement due in shares of common stock	0	4,500,000
Warrant liability	6,686,381	693,457
Term loan, net - current	3,562,578	0
Total current liabilities	20,113,562	22,945,440
Long term loan, net	20,197,992	0
Total liabilities	40,311,554	22,945,440
Commitments and contingencies
Stockholders' equity:
Preferred Stock, $0.01 par value, 5,000,000 shares authorized, including 25,000 shares of Series A Junior Participating Preferred Stock; no shares issued and outstanding	0	0
Common stock, $0.001 par value, 250,000,000 shares authorized; 96,943,072 shares issued and outstanding at September 30, 2016; 66,480,065 shares issued and outstanding at December 31, 2015	96,942	66,480
Additional paid-in capital	431,693,072	409,107,292
Accumulated deficit	(408,193,559)	(365,094,774)
Total stockholders' equity	23,596,455	44,078,998
Total liabilities and stockholders' equity	$ 63,908,009	$ 67,024,438