Note 11 - Income Taxes - Deferred Tax Assets and Deferred Tax Liabilities (Details) - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Net operating loss carryforward	$ 5,082,000	$ 4,801,000
Deferred tax assets	5,082,000	4,801,000
Deferred tax liabilities:
Net deferred tax assets	5,082,000	4,801,000
Valuation allowance	(5,082,000)	(4,801,000)