Consolidated Balance Sheets (USD $)	Dec. 31, 2011	Dec. 31, 2010
ASSETS
Cash and cash equivalents	$ 10,750,205	$ 18,208,659
Accounts receivable	101,132	633,216
Prepaid expenses and other current assets	229,886	236,112
Total current assets	11,081,223	19,077,987
Equipment, net	3,288,108	3,424,869
Goodwill	2,715,000	2,715,000
Other intangible assets:
Licenses	1,900,000	1,900,000
Acquired product rights	8,000,000	8,000,000
Accumulated amortization	(3,749,637)	(2,858,657)
Total other intangible assets	6,150,363	7,041,343
Derivative asset, warrant	388,540	1,299,031
Other assets	21,976	21,976
Total assets	23,645,210	33,580,206
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable and accrued liabilities	5,090,795	4,656,295
Deferred revenue, current	12,507,471	12,491,907
Derivative liabilities (note 7)	279,302	4,989,993
Total current liabilities	17,877,568	22,138,195
Deferred revenue, long-term	1,647,249	1,655,681
Total liabilities	19,524,817	23,793,876
Commitments and contingencies (Notes 6, 7 and 13)
Stockholders' equity:
Preferred Stock, $.001 par value; 5,000,000 shares authorized in 2011 and 2010; 0 shares outstanding in 2011 and 2010
Common Stock, $.001 par value; 75,000,000 and 45,000,000 shares authorized, 29,577,146 and 24,038,445 shares issued; 29,561,655 and 24,022,954 shares outstanding in 2011 and 2010, respectively	29,578	24,039
Additional paid-in capital	99,709,574	82,055,934
Treasury stock, at cost, 15,491 shares, 2011 and 2010	(47,183)	(47,183)
Accumulated deficit	(95,571,576)	(72,246,460)
Total stockholders' equity	4,120,393	9,786,330
Total liabilities and stockholders' equity	$ 23,645,210	$ 33,580,206