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7. Earnings per Share: Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Details) - shares
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2019
Details    
Stock options 7,321,665 7,491,141
Stock purchase warrants 1,200,000 1,200,000
Total 16,958,334 8,862,500