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Note 2 - Significant Accounting Policies - Intangible Assets (Details) - USD ($)
Dec. 31, 2016
Dec. 31, 2015
Other intangibles, gross $ 729,685 $ 729,034
Accumulated Amortization 708,845 701,752
Other intangibles, net 20,840 27,282
Trademarks and Copyrights [Member]    
Other intangibles, gross 554,369 554,369
Accumulated Amortization 545,279 544,504
Other intangibles, net 9,090 9,865
Noncompete Agreements [Member]    
Other intangibles, gross 175,316 174,665
Accumulated Amortization 163,566 157,248
Other intangibles, net $ 11,750 $ 17,417