Net Income (Loss) Per Share (Tables)

6 Months Ended

Jun. 30, 2018

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The following presents a reconciliation of the numerator and denominator used in the calculation of basic net income (loss) per share and a reconciliation of the numerator and denominator used in the calculation of diluted net income (loss) per share (in thousands, except share and per share data):

	Three Months Ended June 30,						Six Months Ended June 30,
	2018			2017			2018			2017
Numerator:
Net income (loss), as reported	$	695		$	(496	)	$	(504	)	$	(1,571	)
Less: net income (loss) attributable to participating securities		(29	)		—			—			—
Net income (loss) available to common shareholders—basic	$	666		$	(496	)	$	(504	)	$	(1,571	)
Denominator:
Basic:
Weighted-average shares of common stock outstanding		42,188,672			41,877,473			42,252,027			41,674,671
Less: weighted-average shares of unvested restricted common stock outstanding		(1,770,364	)		(2,220,402	)		(1,815,432	)		(2,107,417	)
Weighted-average number of common shares used in computing basic net income (loss) per common share		40,418,308			39,657,071			40,436,595			39,567,254
Net income (loss) per share applicable to common shareholders—basic	$	0.02		$	(0.01	)	$	(0.01	)	$	(0.04	)
	Three Months Ended June 30,						Six Months Ended June 30,
	2018			2017			2018			2017
Numerator:
Net income (loss) available to common shareholders—basic	$	666		$	(496	)	$	(504	)	$	(1,571	)
Add-back: undistributed earnings allocated to unvested shareholders		—			—			—			—
Less: undistributed earnings reallocated to unvested shareholders		—			—			—			—
Net income (loss) available to common shareholders—diluted	$	666		$	(496	)	$	(504	)	$	(1,571	)

	Three Months Ended June 30,						Six Months Ended June 30,
	2018			2017			2018			2017
Denominator:
Diluted:
Weighted-average shares of common stock outstanding		42,188,672			41,877,473			42,252,027			41,674,671
Less: weighted-average shares of unvested restricted common stock outstanding		(1,770,364	)		(2,220,402	)		(1,815,432	)		(2,107,417	)
Weighted-average number of common shares issuable upon exercise of outstanding stock options		119,544			—			—			—
Weighted-average number of common shares used in computing diluted net income (loss) per common share		40,537,852			39,657,071			40,436,595			39,567,254
Net income (loss) per share applicable to common shareholders—diluted	$	0.02		$	(0.01	)	$	(0.01	)	$	(0.04	)

Schedule of Anti-Dilutive Securities Excluded from Computation of Earnings Per Share

The following common share equivalents have been excluded from the computation of diluted weighted-average shares outstanding, as their effect would have been anti-dilutive:

	Three Months Ended June 30,				Six Months Ended June 30,
	2018		2017		2018		2017
Options		543,794		887,329		846,046		919,875
Unvested restricted stock		643,109		839,791		641,825		695,645
Unvested restricted stock units		57,158		83,469		67,219		71,526