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10. Income Taxes: Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($)
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Details    
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount $ (152,600) $ 158,000
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount (42,500) 44,000
Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Amount 3,850 6,450
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount 191,250 (208,450)
Income Tax Expense (Benefit) $ 0 $ 0