Note 2 - Significant Accounting Policies - Intangible Assets (Details) - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Other intangibles, gross	$ 729,685	$ 729,685
Accumulated Amortization	713,185	710,463
Other intangibles, net	16,500	19,222
Trademarks and Copyrights [Member]
Other intangibles, gross	554,369	554,369
Accumulated Amortization	546,702	545,897
Other intangibles, net	7,667	8,472
Noncompete Agreements [Member]
Other intangibles, gross	175,316	175,316
Accumulated Amortization	166,483	164,566
Other intangibles, net	$ 8,833	$ 10,750