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Note 13 - Earnings Per Share ("EPS") - Reconciliation of Numerator of Basic and Diluted EPS Calculations (Details) - USD ($)		3 Months Ended
	Feb. 14, 2020	Mar. 31, 2020	Mar. 31, 2019
Net loss		$ (3,370,282)	$ (1,803,508)
Deemed dividends related to down-round features	$ (41,688)	(112,686)
Net loss available to common stockholders (basic and diluted)		$ (3,482,968)	$ (1,803,508)

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Amount of paid and unpaid paid-in-kind dividends (PIK) declared for classes of stock, for example, but not limited to, common and preferred.

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