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Note 4 - Summary of Significant Accounting Policies (Details Textual) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Cash, Uninsured Amount	$ 249,000		$ 134,000
Impairment of Intangible Assets, Finite-lived	0	$ 0
Goodwill, Impairment Loss			1,300,000
Long-term Debt, Total	$ 9,261,713		$ 9,251,547
Client Acquisition Costs [Member]
Finite-Lived Intangible Asset, Useful Life (Year)	4 years		4 years
Weighted Average [Member]
Merchant Contracts, Term (Year)	3 years
Russia and Cayman Islands [Member]
Cash, Uninsured Amount	$ 33,000		$ 30,000

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