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10. Income Taxes: Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($)
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Details    
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount $ (155,400) $ (152,600)
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount (43,300) (42,500)
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Amount (96,200) 0
Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Amount (5,800) 3,850
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount 300,700 191,250
Income Tax Expense (Benefit) $ 0 $ 0