Note 1 - Organization and Summary of Significant Accounting Policies (Details Textual) - USD ($)	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016
Accounts Receivable, Net	$ 0	$ 0
Allowance for Doubtful Accounts Receivable	0	$ 0
Provision for Doubtful Accounts	0
Impairment of Long-Lived Assets Held-for-use	0
Cash, FDIC Insured Amount	250,000
Patents [Member]
Impairment of Intangible Assets (Excluding Goodwill)	$ 0
Minimum [Member]
Property, Plant and Equipment, Useful Life	2 years
Minimum [Member] \| Patents [Member]
Finite-Lived Intangible Asset, Useful Life	15 years
Maximum [Member]
Property, Plant and Equipment, Useful Life	7 years
Maximum [Member] \| Patents [Member]
Finite-Lived Intangible Asset, Useful Life	20 years

For an unclassified balance sheet, the amount due from customers or clients for goods or services that have been delivered or sold in the normal course of business, reduced to their estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an intangible asset (excluding goodwill) to fair value.

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The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

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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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Amount of expense related to write-down of receivables to the amount expected to be collected. Includes, but is not limited to, accounts receivable and notes receivable.

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