Note 2 - Summary of Significant Accounting Policies - Summary of Cash Balances (Details) - USD ($)	Sep. 30, 2018	Dec. 31, 2017	Sep. 30, 2017	Dec. 31, 2016
Cash and Cash Equivalents, at Carrying Value, Ending Balance	$ 533,542	$ 990,457	$ 1,251,951	$ 1,910,153
Parent Company [Member]
Cash and Cash Equivalents, at Carrying Value, Ending Balance	511,095	461,914
Noncontrolling Interest [Member]
Cash and Cash Equivalents, at Carrying Value, Ending Balance	$ 22,447	$ 528,543