Quarterly report pursuant to Section 13 or 15(d)

4. Stock Option Plan (Details 1)

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4. Stock Option Plan (Details 1) - $ / shares
9 Months Ended
Sep. 30, 2018
Dec. 31, 2017
Dec. 31, 2016
Number of shares outstanding 1,085,896 658,592 280,000
Number of shares fully vested and exercisable 437,215    
Option 1      
Exercise price $ 0.001    
Number of shares outstanding 555,520    
Weighted average remaining contractual life 8 years    
Number of shares fully vested and exercisable 389,060    
Weighted average remaining contractual life 7 years 292 days    
Option 2      
Exercise price $ 6.00    
Number of shares outstanding 530,376    
Weighted average remaining contractual life 9 years 292 days    
Number of shares fully vested and exercisable 48,155    
Weighted average remaining contractual life 9 years 36 days