Note 14 - Net Earnings Per Common Share (Tables)

12 Months Ended

Dec. 31, 2018

Notes Tables

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	2018			2017
Shares issued and outstanding at beginning of period		35,916,383			35,842,611
Weighted average number of shares:
Issued during the period		111,904			203,725
Repurchased during the period		(76,076	)		(137,596	)
Weighted average number of shares used in computing basic earnings per share		35,952,211			35,908,740
Assumed exercise of stock options, net of shares assumed acquired under the Treasury Stock Method		619,089			650,536
Number of shares used in computing diluted earnings per share		36,571,300			36,559,276