Note 5 - Income Taxes (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Earliest Tax Year [Member]
Open Tax Year	2013
Latest Tax Year [Member]
Open Tax Year	2015
Second Subsidiary Acquired March 2010 [Member]
Operating Loss Carryforwards	$ 1,800,000
Open Tax Year	2014
Operating Loss Carryforwards	$ 7,700,000	$ 8,400,000
Operating Loss Carryforwards Limitation on Use Amount	657,500
Undistributed Earnings of Foreign Subsidiaries	$ 2,500,000