3 - Income Taxes: Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Details
Depreciation and amortization	$ (1,171,948)	$ (1,190,597)
Inventory	122,629	164,220
Accrued vacation	74,385	74,177
Allowance for doubtful accounts	31,500	31,500
Other, net	350	(384)
Deferred Tax Assets and Liabilities	$ (943,084)	$ (921,084)

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from inventory.

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