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Note 2 - Summary of Significant Accounting Policies (Details) - Schedule of Unrecognized Tax Benefits Roll Forward - USD ($) | 12 Months Ended
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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)

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