Note 7 - Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2020

Notes Tables

Schedule of Weighted Average Number of Shares [Table Text Block]

	Three Months Ended March 31,
	2020		2019
Weighted average number of shares used in computation of basic earnings per share add:		51,036		50,709
Additional shares from the assumed exercise of employee stock options		490		303
Weighted average number of shares used in computation of diluted earnings per share		51,526		51,012