Note 1 - Summary of Significant Accounting Policies - Schedule of Property, Plant and Equipment (Details) - USD ($)	Jun. 30, 2018	Dec. 31, 2017	Dec. 31, 2016
Property, Plant, and Equipment Gross	$ 491,476	$ 361,486	$ 316,393
Less: Accumulated depreciation	307,091	273,770	214,897
Total Fixed Assets, Net	184,385	87,716	101,496
Office Equipment [Member]
Property, Plant, and Equipment Gross	201,123	183,528	164,318
Leasehold Improvements [Member]
Property, Plant, and Equipment Gross	122,188	25,635	25,635
Manufacturing Tooling [Member]
Property, Plant, and Equipment Gross	108,955	108,955	103,204
Demo Equipment [Member]
Property, Plant, and Equipment Gross	$ 59,210	$ 43,368	$ 23,236

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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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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