Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2019

Earnings Per Share [Abstract]

Basic and Diluted Shares of Consolidated Condensed Statements of Income

The following summarizes the Common Stock included in the basic and diluted shares, as disclosed on the face of the consolidated condensed statements of income:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2019		2018		2019		2018
Weighted average number of shares for calculation of basic    EPS		32,838,636		36,103,520		33,282,584		36,364,380
Stock options, restricted stock awards and restricted stock    units under equity incentive plans		94,043		344,642		135,971		105,379
Weighted average number of shares for calculation of    diluted EPS		32,932,679		36,448,162		33,418,555		36,469,759

Common Stock Issuable upon Exercise of Certain Stock Options

The following table represents Common Stock issuable upon the exercise of certain stock options that have been excluded from the diluted earnings calculation because the effect of their inclusion would be anti-dilutive.

	Three Months Ended September 30,				Nine Months Ended September 30,
	2019		2018		2019		2018
Stock options outstanding for equity incentive plans		441,435		12,000		441,435		1,359,250