Note 2 - Summary of Significant Accounting Policies (Details Textual) - USD ($)	3 Months Ended	12 Months Ended
Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Restricted Cash and Cash Equivalents, Current, Total	$ 0	$ 50,000	$ 0
Accounts Receivable, Allowance for Credit Loss, Ending Balance	183,750		$ 163,750
Impairment of Long-Lived Assets Held-for-use	$ 0	$ 0
Share-based Payment Arrangement, Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	3,160,000	7,130,000
Warrant [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	7,543,944	25,545,517
Continuing Operations [Member]
Advertising Expense	$ 47,966	$ 0
Discontinued Operations [Member]
Advertising Expense	$ 0	$ 98,967
Customer Concentration Risk [Member] \| Accounts Receivable [Member] \| Customer One [Member]
Concentration Risk, Percentage	100.00%		32.30%
Customer Concentration Risk [Member] \| Accounts Receivable [Member] \| Customer Two [Member]
Concentration Risk, Percentage			13.80%
Customer Concentration Risk [Member] \| Accounts Receivable [Member] \| Customer Three [Member]
Concentration Risk, Percentage			13.80%
Customer Concentration Risk [Member] \| Accounts Receivable [Member] \| Customer Four [Member]
Concentration Risk, Percentage			13.80%
Customer Concentration Risk [Member] \| Accounts Receivable [Member] \| Customer Five [Member]
Concentration Risk, Percentage			10.30%

Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

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