CONSOLIDATED BALANCE SHEETS (USD $)	Mar. 31, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 7,834,336	$ 592,004
Other current assets	1,166,430	1,077,546
Total current assets	9,000,766	1,669,550
Property & equipment, net of accumulated depreciation of $1,572,821 and $1,494,510, respectively	1,189,328	1,265,041
Restricted cash	500,000	1,000,000
Deferred financing costs, net of amortization of $111,578 and $58,639, respectively	158,540	211,479
Other long-term assets	104,027
Total assets	10,952,661	4,146,070
Current liabilities:
Accounts payable	830,658	412,096
Accrued expenses	931,119	473,879
Deferred revenue	1,395,348
Total current liabilities	3,157,125	885,975
Long term liabilities:
Deferred revenue	3,384,552
Total liabilities	6,918,304	1,262,738
Commitments and contingencies
Stockholders' equity:
Preferred stock, no par value, 10,000,000 shares authorized, none issued and outstanding
Common stock, $0.01 par value, 100,000,000 shares authorized, 7,991,559 and 6,249,369 shares issued and outstanding	79,916	62,494
Additional paid in capital	117,743,543	112,432,458
Deficit accumulated during the development stage	(113,789,102)	(109,611,620)
Total stockholders' equity	4,034,357	2,883,332
Total liabilities and stockholders' equity	10,952,661	4,146,070
Unrelated Party
Long term liabilities:
Convertible debt, net of unamortized discount	301,410	318,658
Related Party Transactions
Long term liabilities:
Convertible debt, net of unamortized discount	$ 75,217	$ 58,105