Note 16 - Income Taxes (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Loss from Operations	$ (3,347,084)	$ (4,201,111)
Operating Losses relating to Foreign Operations	$ 0	(1,944,017)
Percentage change of ownership during the period	50.00%
Nabufit Denmark
Net Operating Loss Carryforwards		1,099,467
USA Operations
Net Operating Loss Carryforwards	$ 1,965,685	1,310,167
State and Local Jurisdiction | USA Operations
Net Operating Loss Carryforwards	8,997,111	6,418,115
Internal Revenue Service (IRS) | USA Operations
Net Operating Loss Carryforwards	$ 7,658,999	$ 5,031,674