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Note 2 - Summary of Significant Accounting Policies (Details) - Schedule of Unrecognized Tax Benefits Roll Forward - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Schedule of Unrecognized Tax Benefits Roll Forward [Abstract]    
Beginning Balance – January 1 $ 1,428,561 $ 1,642,381
Ending Balance – December 31 722,054 1,428,561
Decrease in unrecorded tax benefits taken $ (706,507) $ (213,820)