Note 3 - Shares - Basic and Diluted (Tables)

6 Months Ended

Jun. 30, 2020

Notes Tables

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

	Three Months Ended June 30, (unaudited)				Six Months Ended June 30, (unaudited)
	2020		2019		2020		2019
Basic and diluted		19,281,035		19,180,735		19,267,909		19,163,022
Potentially dilutive		-		2,500		-		11,389