Quarterly report pursuant to Section 13 or 15(d)

7. Stockholders' Equity: Stock Based Compensation Expense - Stock Option (Details)

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7. Stockholders' Equity: Stock Based Compensation Expense - Stock Option (Details) - USD ($)
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Dec. 31, 2018
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
Stock-based compensation expense         $ 260,000
Employee Stock Option [Member]          
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
Stock-based compensation expense $ 147,749 $ 150,510 $ 759,302 $ 558,254  
Employee Stock Option [Member] | General And Administrative Expense [Member]          
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
Stock-based compensation expense 94,122 111,003 584,160 328,854  
Employee Stock Option [Member] | Cost Of Sales [Member]          
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
Stock-based compensation expense 13,020 4,982 63,575 129,079  
Employee Stock Option [Member] | Research And Development Expense [Member]          
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]          
Stock-based compensation expense $ 40,607 $ 34,525 $ 111,567 $ 100,321