13. (Loss) Income Per Common Share

The following table sets forth the computation of basic and diluted income per common share (in thousands, except per share data):


	Three Months Ended
	March 31,
Basic (loss) income per common share	2018		2017
Net (loss) income	$	(3,855)	$	2,223
Net loss (income) allocated to participating securities		38		(44)
Net (loss) income allocated to common shareholders	$	(3,817)	$	2,179

Basic weighted-average common shares outstanding		36,146		32,439
Basic (loss) income per common share	$	(0.11)	$	0.07

	Three Months Ended
	March 31,
Diluted (loss) income per common share	2018		2017
Net (loss) income	$	(3,855)	$	2,223
Net loss (income) allocated to participating securities		38		(43)
Net (loss) income allocated to common shareholders	$	(3,817)	$	2,180

Basic weighted-average common shares outstanding		36,146		32,439
Effect of dilutive stock options and awards		--		1,165
Diluted weighted-average common shares outstanding		36,146		33,604
Diluted (loss) income per common share	$	(0.11)	$	0.06

We excluded stock options from the calculation of diluted weighted-average common shares outstanding if the per share value, including the sum of (i) the exercise price of the options and (ii) the amount of the compensation cost attributed to future services and not yet recognized, was greater than the average market price of the shares because the inclusion of these stock options would be antidilutive to (loss) income per common share. Accordingly, as of March 31, 2018 all stock options and awards were excluded from the calculation of diluted weighted-average common shares outstanding as these would be anti-dilutive due to the net loss. For the three months ended March 31, 2017 stock options to purchase a weighted-average 116,000 shares were antidilutive and excluded from the calculation of diluted weighted-average common shares outstanding.