9. Income Taxes: Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Details
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount	$ 249,000	$ 363,400
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	35.00%	35.00%
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount	$ 34,100	$ 31,200
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent	4.80%	3.00%
Effective Income Tax Rate Reconciliation, Deduction, Amount	$ 600	$ 4,200
Effective Income Tax Rate Reconciliation, Deduction, Percent	0.10%	0.40%
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount	$ (882,400)
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent	(124.20%)
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount	$ 598,700	$ (398,800)
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent	84.20%	(38.40%)