Condensed Consolidated Balance Sheets (USD $)	Jun. 30, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 43,030,542	$ 10,750,205
Accounts receivable, other	23,092	101,132
Prepaid expenses and other current assets	129,127	229,886
Total current assets	43,182,761	11,081,223
Equipment, net	3,057,150	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	(4,260,077)	(3,749,637)
Total other intangible assets	6,689,923	6,150,363
Derivative asset, warrant (note 7)	401,200	388,540
Other assets	21,976	21,976
Total assets	56,068,010	23,645,210
Current liabilities:
Accounts payable and accrued liabilities, other	5,813,366	5,090,795
Deferred revenue, current	15,079,801	12,507,471
Derivative liabilities (note 7)	5,638,001	279,302
Total current liabilities	26,531,168	17,877,568
Deferred revenue, long-term	1,475,719	1,647,249
Total liabilities	28,006,887	19,524,817
Commitments and contingencies
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; 29,756,324 and 29,577,146 shares issued; 29,740,833 and 29,561,655 shares outstanding in 2012 and 2011, respectively	29,757	29,578
Additional paid-in capital	100,819,805	99,709,574
Treasury stock, at cost, 15,491 shares, 2012 and 2011	(47,183)	(47,183)
Accumulated deficit	(72,741,256)	(95,571,576)
Total stockholders' equity	28,061,123	4,120,393
Total liabilities and stockholders' equity	$ 56,068,010	$ 23,645,210