Note 1 - Basis of Presentation and Certain Significant Accounting Policies - Intangible Assets (Details) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Other intangibles, gross	$ 729,685	$ 729,685
Accumulated Amortization	711,602	710,463
Other intangibles, net	18,083	19,222
Trademarks and Copyrights [Member]
Other intangibles, gross	554,369	554,369
Accumulated Amortization	546,369	545,897
Other intangibles, net	8,000	8,472
Noncompete Agreements [Member]
Other intangibles, gross	175,316	175,316
Accumulated Amortization	165,233	164,566
Other intangibles, net	$ 10,083	$ 10,750

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 928
-SubTopic 340
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004

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-Paragraph 2
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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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