Quarterly report pursuant to Section 13 or 15(d)

Note 7 - Fair Value Assumptions of Options Granted (Details)

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Note 7 - Fair Value Assumptions of Options Granted (Details)
6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Minimum [Member]    
Expected volatility 46.00% 43.00%
Expected dividends    
Expected term (years) 5 years 5 years 182 days
Risk-free rate 1.32% 0.07%
Forfeiture rate    
Maximum [Member]    
Expected volatility 47.00% 46.00%
Expected dividends    
Expected term (years) 6 years 91 days 7 years 182 days
Risk-free rate 1.74% 2.05%
Forfeiture rate    
Expected volatility    
Expected dividends 0.00% 0.00%
Expected term (years)    
Risk-free rate    
Forfeiture rate 20.00% 0.00%