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Note 7 Stock Compensation (Policies)
6 Months Ended
Jun. 30, 2012
Notes to Financial Statements  
Stock Compensation

The Company uses the Black-Scholes option pricing model to calculate the grant-date fair value of an award, with the following assumptions for 2012 and 2011: no dividend yield in both years, expected volatility, based on the Company’s historical volatility, between 115% and 118% in 2012 and between 119% and 125% in 2011, risk-free interest rate between 0.69% and 2.26% in 2012 and between 0.96% and 2.15% in 2011 and expected option life of five to ten years in 2012 and three to five years in 2011.