Balance Sheets (USD $)	Mar. 31, 2013	Dec. 31, 2012
Assets
Cash and cash equivalents	$ 266,110	$ 113,991
Investments in available-for-sale securities	2,481,553	2,658,190
Other current assets	24,327	36,331
Total current assets	2,771,890	2,808,512
Total Assets	2,771,990	2,808,512
Liabilities and stockholders' equity
Accounts payable	21,501	0
Accrued stock compensation	15,625	15,625
Income taxes payable	0	682
Conversion feature liability	109,775	108,839
Total current liabilities	146,901	125,146
Commitments and contingencies
Redeemable convertible preferred stock, $0.01 par value, 1,000,000 shares authorized; 168 shares issued and outstanding ($168,496 aggregate liquidation value)	168,496	168,496
Stockholders' equity:
Common stock, $0.01 par value, 100,000,000 shares authorized; 8,396,199 and 8,318,073 shares issued and outstanding at March 31, 2013 and December 31, 2012, respectively	83,962	83,180
Additional paid-in capital	64,367,001	64,352,158
Accumulated deficit	(62,007,447)	(61,917,302)
Accumulated other comprehensive income (loss)	13,077	(3,166)
Total stockholders' equity	2,456,593	2,514,870
Total liabilities and stockholders' equity	$ 2,771,990	$ 2,808,512