Quarterly report pursuant to Section 13 or 15(d)

Note 10 - Equity - Fair Value Assumptions of Options Granted (Details)

v3.10.0.1
Note 10 - Equity - Fair Value Assumptions of Options Granted (Details) - Employee Stock Option [Member]
3 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Expected volatility 35.00% 42.00%
Expected dividends 0.00% 0.00%
Expected term (Year) 7 years  
Forfeiture rate 20.00% 20.00%
Minimum [Member]    
Expected term (Year)   5 years 182 days
Risk-free rate 2.53% 1.98%
Maximum [Member]    
Expected term (Year)   7 years
Risk-free rate 2.90% 2.14%