Note 8 - Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2019

Notes Tables

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

	Three Months Ended March 31,
	2019		2018
Weighted average number of shares used in computation of basic earnings per share		50,709		50,614
Add:
Additional shares from the assumed exercise of employee stock options		303		437
Weighted average number of shares used in computation of diluted earnings per share		51,012		51,051