Net Income (Loss) Per Share

Basic net income (loss) per share is computed by dividing net income (loss) attributable to common shareholders by the number of common shares outstanding during the period, including issued and outstanding participating securities on an as-converted basis. We apply the two-class method to calculate basic and diluted net income (loss) per share of common stock, as our Series A Redeemable Convertible Preferred Stock (Series A Preferred Stock) is a participating security. The two-class method is an earnings allocated formula that treats a participating security as having rights to earnings that otherwise would have been available to common stockholders. For fiscal 2016, and fiscal 2015, we were in a loss position from continuing operations for each of these periods, and the Series A Preferred Stockholders do not contractually participate in losses, as such, we added the Series A Preferred Stock dividends to the loss from continuing operations to calculate the loss attributable to common stockholders in order to calculate the numerator used in the net income (loss) per share. We compute diluted net income (loss) per common share using income (loss) from continuing operations as the “control number” in determining whether potential common shares are dilutive, after giving consideration to all potentially dilutive common shares, including stock options, unvested restricted stock outstanding during the period and potential issuance of stock upon the conversion of the our Series A Preferred Stock issued and outstanding during the period, except where the effect of such securities would be antidilutive. In performing the dilutive calculation, the more dilutive of the treasury stock method and the two-class method is used. For fiscal 2016 and fiscal 2015, we incurred a loss from continuing operations, and as such, there are no potential common shares with a dilutive impact.

The calculations of basic and diluted net income (loss) per share and basic and dilutive weighted-average shares outstanding for fiscal 2017, fiscal 2016, and fiscal 2015 were as follows (in thousands, except per share data):



	Fiscal Year Ended
	December 30, 2017			December 31, 2016			December 26, 2015

Numerator:
Basic:
Net income (loss) from continuing operations attributable to common stockholders	$	6,944		$	(3,612	)	$	(17,879	)
Net income from discontinued operations attributable to common stockholders	$	—		$	6,757		$	(17,116	)
Dilutive
Net income (loss) from continuing operations attributable to common stockholders	$	6,944		$	(3,612	)	$	(17,879	)
Plus: undistributed earnings allocated to participating securities	3,719			—			—
Less: undistributed earnings reallocated to participating securities	(3,637		)	—			—
Net income (loss) from continuing operations attributable to common stockholders	$	7,026		$	(3,612	)	$	(17,879	)
Net income (loss) from discontinued operations attributable to common stockholders	$	—		$	6,757		$	(17,116	)

Denominator:
Weighted-average shares outstanding - basic	29,680			30,535			32,001

Dilutive impact from:
Options outstanding	1,941			—			—
Restricted stock units	785			—			—
Weighted-average shares outstanding - dilutive	32,406			30,535			32,001

Net income (loss) per share attributable to common stockholders (Basic):
Income (loss) per share from continuing operations attributable to common stockholders	$	0.23		$	(0.12	)	$	(0.56	)
Income (loss) per share from discontinued operations attributable to common stockholders	—			0.22			(0.53		)
Net income (loss) per share attributable to common stockholders	$	0.23		$	0.10		$	(1.09	)

Net income (loss) per share attributable to common stockholders (Diluted):
Income (loss) per share from continuing operations attributable to common stockholders	$	0.22		$	(0.12	)	$	(0.56	)
Income (loss) per share from discontinued operations attributable to common stockholders	—			0.22			(0.53		)
Net income (loss) per share attributable to common stockholders	$	0.22		$	0.10		$	(1.09	)

The following equity shares were excluded from the calculation of diluted net loss per share attributable to common stockholders because their effect would have been anti-dilutive for the periods presented (in thousands):



	Fiscal Year Ended
	December 30, 2017	December 31, 2016	December 26, 2015
Stock options	1,365	4,312	3,482
Restricted stock units	140	1,780	1,306
Series A Redeemable Convertible Preferred Stock (as converted to common stock)	4,787	4,539	—