CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Current Assets:
Cash and cash equivalents	$ 81,960	$ 82,387
Accounts receivable	1,782	0
Inventories	11,853	5,640
Prepaid expenses and other current assets	8,368	889
Total Current Assets	103,963	88,916
Property and equipment, net	529	593
Security deposits	407	343
Total Assets	104,899	89,852
Current Liabilities:
Accounts payable	30,460	15,584
Accrued expenses	12,390	13,552
Interest payable on senior convertible notes	233	294
Deferred revenues, net	1,498	0
Total Current Liabilities	44,581	29,430
Senior convertible notes, net	16,948	22,665
Derivative financial instruments, at estimated fair value-warrants	55	216
Total Liabilities	61,584	52,311
Commitments and contingencies
Stockholders’ Equity
Preferred stock, authorized 20,000,000 shares and none outstanding, at June 30, 2017 and December 31, 2016	0	0
Common stock, par value of $.0001, 400,000,000 shares authorized at June 30, 2017 and 350,000,000 shares authorized at December 31, 2016. Issued and outstanding 224,954,941 shares and 202,737,860 shares at June 30, 2017 and December 31, 2016, respectively.	23	20
Additional paid-in capital	764,777	620,513
Accumulated deficit	(721,485)	(582,992)
Total Stockholders’ Equity	43,315	37,541
Total Liabilities and Stockholders’ Equity	$ 104,899	$ 89,852