Income (loss) per share

Basic income (loss) per share is computed by dividing net income (loss) by the weighted average number of common shares outstanding during the period, in addition to restricted stock units ("RSUs") and restricted common stock that are vested but not delivered. Diluted income (loss) per share reflects the potential dilution that could occur if securities or other contracts to issue common stock are exercised or converted into common stock, and is calculated using the treasury stock method for stock options, restricted stock units, restricted stock, warrants and deferred common stock. Common equivalent shares are excluded from the calculation in loss periods, as their effects would be anti-dilutive.

For the three and six months ended June 30, 2019 and 2018, basic and diluted income (loss) per share was as follows:



	Three Months Ended June 30,				Six Months Ended June 30,
(In thousands, except share data)	2019		2018		2019		2018
Numerator:
Net income (loss) from continuing operations	$	715	$	2,645	$	1,760	$	(2,913	)
Net loss from discontinued operations	—		—		—		(21,124		)
Net income (loss)	$	715	$	2,645	$	1,760	$	(24,037	)
Denominator:
Weighted average shares outstanding	76,487,160		75,282,042		76,056,652		71,318,930
Weighted average restricted shares vested not delivered	2,901,223		2,914,917		3,240,947		3,566,816
Total basic weighted average shares outstanding	79,388,383		78,196,959		79,297,599		74,885,746
Dilutive effect of assumed conversion of restricted stock units	1,408,277		—		882,263		—
Dilutive effect of assumed conversion of warrants	329,808		—		262,567		—
Dilutive effect of assumed conversion of stock options	5,836		—		1,101		—
Total weighted average diluted shares outstanding	81,132,304		78,196,959		80,443,530		74,885,746
Basic and diluted income (loss) per share: (1)
Basic:
Continuing operations	$	0.01	$	0.03	$	0.02	$	(0.04	)
Discontinued operations	$	—	$	—	$	—	$	(0.28	)
Net income (loss)	$	0.01	$	0.03	$	0.02	$	(0.32	)
Diluted:
Continuing operations	$	0.01	$	0.03	$	0.02	$	(0.04	)
Discontinued operations	$	—	$	—	$	—	$	(0.28	)
Net income (loss)	$	0.01	$	0.03	$	0.02	$	(0.32	)

(1)Income (loss) per share tables may contain summation differences due to rounding.

The following potentially dilutive securities were excluded from the calculation of diluted income (loss) per share, as their effects would have been anti-dilutive for the periods presented:



	Three Months Ended June 30,		Six Months Ended June 30,
	2019	2018	2019	2018
Restricted stock units	110,000	3,750,003	1,740,502	6,664,920
Stock options	2,060,000	2,623,776	2,060,000	2,623,776
Warrants	1,350,000	137,000	1,350,000	137,000
Total anti-dilutive securities	3,520,000	6,510,779	5,150,502	9,425,696