Note 10 - Stock Options (Tables)

12 Months Ended

Dec. 31, 2017

Notes to Financial Statements

Schedule of Stock Options, Valuation Assumptions

The fair value of each option grant is estimated on the date of the grant using the Black-Scholes option-pricing model with the following weighted-average assumptions used for the grants made in 2017:

	2017
Expected life (in years)	1.22
Risk free interest rate	1.38%
Expected volatility	245%
Dividend yield	-