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) - Employee Stock Option [Member] - USD ($)
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Stock-based compensation expense $ 115,748 $ 222,296
General And Administrative Expense [Member]    
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Stock-based compensation expense 54,232 125,118
Cost Of Sales [Member]    
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Stock-based compensation expense 39,914 68,480
Research And Development Expense [Member]    
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Stock-based compensation expense $ 21,602 $ 28,698