Quarterly report pursuant to Section 13 or 15(d)

Note 3 - Summary of Significant Accounting Policies - Fair Value of Level 3 Instruments (Details)

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Note 3 - Summary of Significant Accounting Policies - Fair Value of Level 3 Instruments (Details) - Derivative Financial Instruments, Liabilities [Member]
3 Months Ended
Mar. 31, 2019
USD ($)
Balance at beginning of year
Warrants issued in connection with public offering (See Note 8) 376,497
Change in fair value of derivative liability 40,260
Balance at end of period $ 336,237