Note 8 - Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2017

Notes Tables

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

	Three Months Ended March 31,
	2017		2016
Weighted average number of shares used in computation of basic earnings per share		49,680		49,173
Add:
Additional shares from the assumed exercise of employee stock options		811		609
Weighted average number of shares used in computation of diluted earnings per share		50,491		49,782