Note 7 - Income Taxes (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Deferred Tax Assets, Operating Loss Carryforwards, Domestic		$ 7,989,620
Deferred Tax Assets, Gross		$ 2,125,133
Valuation Allowance Percentage of Deferred Tax Assets		100.00%
Deferred Tax Assets, Valuation Allowance		$ 713,056
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent		34.00%	34.00%
Decrease in Deferred Tax Assets		$ 1,067,000
Unrecognized Tax Benefits			$ 0
Scenario, Forecast [Member]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%