Note 8 - Loss Per Share (Tables)

3 Months Ended

Mar. 31, 2022

Notes Tables

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Three Months Ended March 31,
	2022			2021
Numerator:
Net loss attributable to common shareholders per common share: basic and diluted calculation	$	(3,370,715	)	$	(3,888,713	)
Denominator:
Weighted average common shares outstanding-basic		65,835,080			36,513,300
Effect of diluted stock options, warrants, and preferred stock (1)		-			-
Weighted average common shares outstanding - diluted		65,835,080			36,513,300
Loss per common share-basic and diluted	$	(0.05	)	$	(0.11	)

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

	Three Months ended March 31,
	2022		2021
Options		1,030,579		1,006,419
Warrants		31,661,245		15,062,139
Preferred stock: series B		7,925		7,925