1. Organization and Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2012

Accounting Policies [Abstract]

Net loss per share

	2012		2011
Basic and diluted weighted average common stock shares outstanding		69,679,854		69,679,854
Potentially dilutive securities excluded from loss per share computations:
Common stock options		20,379,602		17,873,277
Common stock purchase warrants		7,718,750		6,218,750

Assumptions

Assumptions	2012			2011
Risk-free rate		0.77	%		2.12	%
Annual rate of dividends		––			––
Historical volatility		103.02	%		92.91	%
Expected life	6.7 years			6.0 years