Note 8 - Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2018

Notes Tables

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

	Three Months Ended September 30,				Nine Months Ended September 30,
	2018		2017		2018		2017
Weighted average number of shares used in computation of basic earnings per share		50,645		50,367		50,627		49,942
Add:
Additional shares from the assumed exercise of employee stock options		318		500		358		727
Weighted average number of shares used in computation of diluted earnings per share		50,963		50,867		50,985		50,669