Condensed Balance Sheets (USD $)	Sep. 30, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 10,005,639	$ 6,653,168
Other assets	593,000	91,286
Total current assets	10,598,639	6,744,454
Property and equipment, net	83,621	76,402
Other assets
Deferred offering costs	0	282,599
Deposits	11,420	47,302
Total assets	10,693,680	7,150,757
Current liabilities:
Accounts payable	1,225,362	1,316,540
Accrued liabilities	842,648	444,749
Total current liabilities	2,068,010	1,761,289
Warrant Liability	5,599,468	2,157,408
Commitments and contingencies (Note 5)
Shareholders' equity:
Common stock, $0.0001 par value; 99,000,000 shares authorized; 41,112,451 shares and 28,613,984 shares issued and outstanding as of September 30, 2012 and December 31, 2011, respectively	4,111	2,861
Additional paid-in capital	46,674,661	31,902,890
Deficit accumulated during the development stage	(43,652,570)	(28,673,691)
Total shareholders' equity	3,026,202	3,232,060
Total liabilities and shareholders' equity	$ 10,693,680	$ 7,150,757