Note 11 - Related Parties (Tables)

3 Months Ended

Mar. 31, 2022

Notes Tables

Schedule of Related Party Transactions [Table Text Block]

	Period ended March 31,
	2021		2020
Selling general and administrative	$	27,493	$	15,032
Share-based compensation to directors and officers		17,431		50,049
	$	44,924	$	65,081