Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Current Assets
Cash and cash equivalents	$ 28,376	$ 34,766
Accounts receivable, net	53	133
Interest receivable	1	1
Other current assets	644	789
Total Current Assets	29,074	35,689
Restricted cash	250	250
Property and equipment, net	3,010	3,120
Intellectual property, net	2,116	2,241
Trade names, net	7	7
Goodwill	93,842	93,842
Other long term assets	52	62
Total Assets	128,351	135,211
Current Liabilities
Accounts payable	2,278	1,768
Accrued expenses	1,626	1,769
Note payable - current portion	1,540	610
Total Current Liabilities	5,444	4,147
Long Term Liabilities
Note payable - less current portion, net of debt discount	8,360	9,275
Total Liabilities	13,804	13,422
Commitments and Contingencies
Stockholders' Equity
Common stock $0.001 par value, 750,000,000 shares authorized at March 31, 2015 and December 31, 2014 ; and 64,478,085 and 63,182,806 shares issued and outstanding at March 31, 2015 and December 31, 2014, respectively	64	63
Additional paid-in capital	260,519	257,642
Accumulated deficit	(146,036)	(135,916)
Total Stockholders' Equity	114,547	121,789
Total Liabilities and Stockholders' Equity	$ 128,351	$ 135,211