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1. Unaudited Interim Financial Statements: Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Details) - shares
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Details        
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 166,881 208,346 166,881 208,346