Note 1 - Nature of Operations and Summary of Significant Accounting Policies: Property and Equipment: Schedule of Depreciation (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Depreciation	$ 266	$ 263
Property, Plant and Equipment, Gross	10,630	10,499
Less accumulated depreciation and amortization	(6,370)	(6,104)
Property and equipment, net	4,260	4,395
Building and Building Improvements
Property, Plant and Equipment, Gross	$ 3,065	3,065
Building and Building Improvements \| Minimum
Property, Plant and Equipment, Useful Life	5 years
Building and Building Improvements \| Maximum
Property, Plant and Equipment, Useful Life	40 years
Machinery and Equipment
Property, Plant and Equipment, Gross	$ 4,685	4,554
Machinery and Equipment \| Minimum
Property, Plant and Equipment, Useful Life	3 years
Machinery and Equipment \| Maximum
Property, Plant and Equipment, Useful Life	8 years
Office Equipment
Property, Plant and Equipment, Gross	$ 630	630
Office Equipment \| Minimum
Property, Plant and Equipment, Useful Life	3 years
Office Equipment \| Maximum
Property, Plant and Equipment, Useful Life	8 years
Land {1}
Property, Plant and Equipment, Gross	$ 2,250	$ 2,250

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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