Annual report pursuant to Section 13 and 15(d)

Note 8 - Equity - Fair Value Assumptions of Options Granted (Details)

v3.8.0.1
Note 8 - Equity - Fair Value Assumptions of Options Granted (Details) - Employee Stock Option [Member]
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Expected volatility 42.00%  
Expected dividends 0.00% 0.00%
Expected term (years) (Year)   7 years
Forfeiture rate 20.00% 20.00%
Minimum [Member]    
Expected volatility   42.00%
Expected term (years) (Year) 5 years 182 days  
Risk-free rate 1.98% 1.19%
Maximum [Member]    
Expected volatility   45.00%
Expected term (years) (Year) 7 years  
Risk-free rate 2.20% 1.68%