Note 3 - Earnings (Loss) Per Share - Basic and Diluted (Tables)

6 Months Ended

Jun. 30, 2021

Notes Tables

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

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	(unaudited)				(unaudited)
	2021		2020		2021		2020
Basic and diluted		19,351,489		19,281,035		19,339,680		19,267,909