Condensed Consolidated Balance Sheets (USD $)	Sep. 30, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 31,319,153	$ 10,750,205
Accounts receivable	24,303	101,132
Prepaid expenses and other current assets	227,488	229,886
Total current assets	31,570,944	11,081,223
Equipment, net	2,944,514	3,288,108
Goodwill	2,715,000	2,715,000
Other intangible assets:
Licenses	1,900,000	1,900,000
Acquired product rights	9,050,000	8,000,000
Accumulated amortization	(4,515,296)	(3,749,637)
Total other intangible assets	6,434,704	6,150,363
Derivative asset, warrant (note 7)	187,600	388,540
Other assets	21,976	21,976
Total assets	43,874,738	23,645,210
Current liabilities:
Accounts payable and accrued liabilities	7,389,459	5,090,795
Deferred revenue, current	15,149,561	12,507,471
Derivative liabilities (note 7)	8,949,412	279,302
Total current liabilities	31,488,432	17,877,568
Deferred revenue, long-term	1,356,359	1,647,249
Total liabilities	32,844,791	19,524,817
Commitments and contingencies (note 10)
Stockholders' equity:
Preferred Stock, $.001 par value; 5,000,000 shares authorized in 2012 and 2011; 0 shares outstanding in 2012 and 2011
Common Stock, $.001 par value; 75,000,000 shares authorized; 30,408,518 and 29,577,146 shares issued; 30,393,027 and 29,561,655 shares outstanding in 2012 and 2011, respectively	30,410	29,578
Additional paid-in capital	103,091,109	99,709,574
Treasury stock, at cost, 15,491 shares, 2012 and 2011	(47,183)	(47,183)
Accumulated deficit	(92,044,389)	(95,571,576)
Total stockholders' equity	11,029,947	4,120,393
Total liabilities and stockholders' equity	$ 43,874,738	$ 23,645,210