Annual report pursuant to Section 13 and 15(d)

8. Stock-based Plans and Stock-based Compensation: Stock Based Compensation Expense - Stock Option (Details)

v3.19.1
8. Stock-based Plans and Stock-based Compensation: Stock Based Compensation Expense - Stock Option (Details) - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]    
Stock-based compensation expense $ 260,000  
Employee Stock Option [Member]    
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]    
Stock-based compensation expense 667,912 $ 911,696
Employee Stock Option [Member] | General And Administrative Expense [Member]    
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]    
Stock-based compensation expense 311,303 570,170
Employee Stock Option [Member] | Cost Of Sales [Member]    
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]    
Stock-based compensation expense 225,275 166,083
Employee Stock Option [Member] | Research And Development Expense [Member]    
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]    
Stock-based compensation expense $ 131,334 $ 175,443