Note 4. Equity (Details 1)	3 Months Ended
	Mar. 31, 2020 $ / shares shares
Option 1
Exercise price range	0.01 - 7.00
Number of options outstanding	10,000
Weighted average remaining contractual life (in years)	5 years 7 months 20 days
Weighted average exercise price | $ / shares	$ 6.8
Number of options exercisable	10,000
Option 2
Exercise price range	7.01 - 8.00
Number of options outstanding	20,313
Weighted average remaining contractual life (in years)	3 years 5 months 26 days
Weighted average exercise price | $ / shares	$ 7.76
Number of options exercisable	20,313
Option 3
Exercise price range	8.01 - 12.00
Number of options outstanding	8,167
Weighted average remaining contractual life (in years)	6 years 11 months 12 days
Weighted average exercise price | $ / shares	$ 9.99
Number of options exercisable	4,167
Option 4
Exercise price range	12.01 - 15.00
Number of options outstanding	57,000
Weighted average remaining contractual life (in years)	8 years 1 month 13 days
Weighted average exercise price | $ / shares	$ 13.09
Number of options exercisable	44,500
Option 5
Exercise price range	15.01 - 17.40
Number of options outstanding	32,000
Weighted average remaining contractual life (in years)	8 years 2 months 1 day
Weighted average exercise price | $ / shares	$ 17.4
Number of options exercisable	32,000
Total
Number of options outstanding	127,480
Weighted average remaining contractual life (in years)	7 years 1 month 13 days
Weighted average exercise price | $ / shares	$ 12.63
Number of options exercisable	110,980