Condensed Consolidated Balance Sheets (USD $)	Jun. 30, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 6,271,500	$ 4,721,279
Restricted cash	50,000	150,000
Accounts receivable	9,757	0
Inventory	771,867	434,130
Prepaid expenses and other assets	182,160	68,204
Total current assets	7,285,284	5,373,613
Restricted cash	0	50,000
Property and equipment, net	102,872	135,581
Investment	435,000	435,000
Technology license fees, net	1,265,523	1,332,727
Other long term assets	176,308	176,308
Total assets	9,264,987	7,503,229
Current liabilities:
Accounts payable	638,983	749,586
Accrued liabilities	418,446	464,894
Derivative liabilities-fair value of warrants	0	85,506
Total current liabilities	1,057,429	1,299,986
Deferred rent	87,026	118,313
Total liabilities	1,144,455	1,418,299
Commitments and contingencies
Stockholders' equity:
Common stock, $0.0001 par value; 200,000,000 shares authorized; issued and outstanding 119,617,356 at June 30, 2012 and 96,565,834 at December 31, 2011	11,962	8,610
Additional paid-in capital	100,669,068	94,167,335
Deficit accumulated during development stage	(92,560,498)	(88,091,015)
Total stockholders' equity	8,120,532	6,084,930
Total liabilities and stockholders' equity	$ 9,264,987	$ 7,503,229