Balance Sheets (USD $)	Dec. 31, 2012	Dec. 31, 2011
Assets
Cash and cash equivalents	$ 113,991	$ 422,984
Investments in available-for-sale securities	2,658,190	2,491,773
Other current assets	36,331	21,868
Total current assets	2,808,512	2,936,625
Other assets:
Investment in ClearSign	0	1,000,000
Total Assets	2,808,512	3,936,625
Liabilities and stockholders' equity
Accounts payable	0	5,451
Accrued stock compensation	15,625	15,625
Income taxes payable	682	0
Conversion feature liability	108,839	81,101
Total current liabilities	125,146	102,177
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; 8,318,073 and 8,028,778 shares issued and outstanding at December 31, 2012 and 2011, respectively	83,180	80,287
Additional paid-in capital	64,352,158	64,292,551
Accumulated deficit	(61,917,302)	(60,681,860)
Accumulated other comprehensive loss	(3,166)	(25,026)
Total stockholders' equity	2,514,870	3,665,952
Total liabilities and stockholders' equity	$ 2,808,512	$ 3,936,625