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Note 3 - Basis of Presentation and Summary of Significant Accounting Policies (Details Textual) - USD ($)	3 Months Ended		6 Months Ended	9 Months Ended		12 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Jun. 30, 2018	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Repayments of Long-term Debt, Total				$ 550,000	$ 1,880,000
Interest Paid, Excluding Capitalized Interest, Operating Activities				40,142	112,800
Impairment of Intangible Assets (Excluding Goodwill), Total	$ 0	$ 0		0	0
Goodwill, Impairment Loss	4,186,050			$ 4,186,050
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent				21.00%		34.00%
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability	200,000			$ 500,000
Convertible Note, Series B [Member]
Repayments of Long-term Debt, Total			$ 600,000
Interest Paid, Excluding Capitalized Interest, Operating Activities			$ 40,000
Convertible Debt, Total	$ 0			$ 0
Fair Value, Inputs, Level 3 [Member] \| Convertible Note, Series B [Member]
Convertible Debt, Fair Value Disclosures						$ 600,000