BALANCE SHEETS (USD $)	Mar. 31, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 4,677,956	$ 7,109,215
Other current assets	1,005,756	124,773
Total current assets	5,683,712	7,233,988
Property & equipment, net of accumulated depreciation of $1,260,334 and $1,193,601, respectively	1,390,674	1,029,236
Total assets	7,074,386	8,263,224
Current liabilities:
Accounts payable	1,681,799	476,315
Accounts payable - related parties	15,000	15,000
Accrued expenses	350,802	576,545
Total current liabilities	2,047,601	1,067,860
Total liabilities	2,047,601	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, 23,048,488 shares issued and outstanding	230,485	230,485
Additional paid in capital	107,851,086	107,645,666
Deficit accumulated during the development stage	(103,054,786)	(100,680,787)
Total stockholders' equity	5,026,785	7,195,364
Total liabilities and stockholders' equity	$ 7,074,386	$ 8,263,224