Earnings (loss) per Share

9 Months Ended

Sep. 30, 2018

Earnings Per Share [Abstract]

Earnings (loss) per Share

2.     Earnings (loss) per Share 

Basic earnings (loss) per share is calculated by dividing net income (loss) by the weighted average number of common shares outstanding. Diluted earnings (loss) 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 (loss) per share: 

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2018		2017		2018		2017
Denominator:
Weighted average common shares for basic earnings (loss) per share		16,404,805		16,274,663		16,380,807		16,260,862
Effect of dilutive securities		158,440		—		111,410		—
Weighted average common shares for diluted earnings (loss) per share		16,563,245		16,274,663		16,492,217		16,260,862

Stock awards to purchase 223,477 and 667,239 shares of common stock for the three months ended September 30, 2018 and 2017, respectively, and 295,387 and 683,847 shares for the nine months ended September 30, 2018 and 2017, respectively, were not included in the diluted net income (loss) per share calculation as their inclusion would have been anti-dilutive.