Earnings (Loss) Per Share

Basic earnings (loss) per common share is calculated by dividing net income (loss) by the weighted average number of common shares outstanding for the period. Diluted earnings (loss) per common share is calculated by dividing net income (loss) by the weighted average number of common shares outstanding combined with dilutive common share equivalents outstanding, if the effect is dilutive.

Potentially dilutive securities were excluded from the calculation of diluted loss per share for the three months ended March 31, 2017, since including them would have an anti-dilutive effect on loss per share due to the net loss incurred during the period. Securities convertible into shares of common stock that were not considered in the diluted loss per share calculation were 0.7 million stock options and 1.2 million restricted stock units for the three months ended March 31, 2017.

Basic and diluted earnings (loss) per common share are as follows (in thousands, except per share data):



	Three months ended March 31,
	2018		2017
Income (loss) from continuing operations	$	67	$	(743	)
Loss from discontinued operations, net of tax	—		(11,235		)
Net income (loss) - Basic and Diluted	$	67	$	(11,978	)

Weighted average common shares outstanding - Basic	57,259		57,673
Assumed conversions:
Incremental common shares from stock options	—		—
Incremental common shares from restricted stock units	—		—
Weighted average common shares outstanding - Diluted	57,259		57,673

Basic earnings (loss) per common share:
Continuing operations	$	—	$	(0.01	)
Discontinued operations, net of tax	—		(0.19		)
Basic earnings (loss) per common share	$	—	$	(0.20	)
Diluted earnings (loss) per common share:
Continuing operations	$	—	$	(0.01	)
Discontinued operations, net of tax	—		(0.19		)
Diluted earnings (loss) per common share	$	—	$	(0.20	)