Earnings per Share

3 Months Ended

Mar. 31, 2019

Earnings Per Share [Abstract]

Earnings per Share

2. Earnings per Share

Basic earnings per share is calculated by dividing net income by the weighted average number of common shares outstanding. Diluted earnings per share include the dilutive effects of options and unvested restricted stock awards and units.

The following reconciles the denominator used in the calculation of diluted earnings per share:

	Three Months Ended
	March 31,
	2019		2018
Denominator:
Weighted average common shares for basic earnings per share		16,477,855		16,349,902
Effect of dilutive securities		99,271		73,059
Weighted average common shares for diluted earnings per share		16,577,126		16,422,961

Stock awards to purchase 356,890 shares and 422,947 shares of common stock were not included in the diluted net income per share calculation for the three months ended March 31, 2019 and 2018, respectively, as their inclusion would have been anti-dilutive.