CONSOLIDATED BALANCE SHEETS (USD $)	Dec. 31, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 592,004	$ 7,109,215
Other current assets	1,077,546	124,773
Total current assets	1,669,550	7,233,988
Property & equipment, net of accumulated depreciation of $1,494,510 and $1,193,601, respectively	1,265,041	1,029,236
Restricted cash	1,000,000
Deferred financing costs, net of amortization of $58,639 and $0, respectively	211,479
Total assets	4,146,070	8,263,224
Current liabilities:
Accounts payable	412,096	491,315
Accrued expenses	473,879	576,545
Total current liabilities	885,975	1,067,860
Long term liabilities:
Total liabilities	1,262,738	1,067,860
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, 6,249,369 and 5,762,028 shares issued and outstanding	62,494	57,621
Additional paid in capital	112,432,458	107,818,530
Deficit accumulated during the development stage	(109,611,620)	(100,680,787)
Total stockholders' equity	2,883,332	7,195,364
Total liabilities and stockholders' equity	4,146,070	8,263,224
Unrelated Party
Long term liabilities:
Convertible debt, net of unamortized discount	318,658
Related Party Transactions
Long term liabilities:
Convertible debt, net of unamortized discount	$ 58,105