Net Loss Per Share (Tables)

12 Months Ended

Dec. 31, 2015

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The following table sets for the computations of loss per share (in thousands, except share and per share amounts):

	December 31,
	2015			2014			2013
Numerators:
Loss from continuing operations attributable to common stockholders	$	(13,664	)	$	(20,117	)	$	(8,555	)
Income (loss) from discontinued operations attributable to common stockholders	—			—			(642		)
Preferred stock dividends and accretion	—			(1,524		)	(98		)
Net loss attributable to common stockholders	$	(13,664	)	$	(21,641	)	$	(9,295	)
Denominator:
Weighted–average common shares outstanding, basic and diluted	14,939,601			4,889,901			1,196,668
Loss from continuing operations per share, basic and diluted	$	(0.91	)	$	(4.43	)	$	(7.23	)
Loss from discontinued operations per share, basic and diluted	—			—			(0.54		)
Net loss per common share, basic and diluted	$	(0.91	)	$	(4.43	)	$	(7.77	)

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

The following table sets forth the anti-dilutive common share equivalents:

	December 31,
	2015	2014	2013
Redeemable convertible preferred stock:
Series A preferred stock	—	—	2,821,181
Series B preferred stock	—	—	1,701,909
Series B–1 preferred stock	—	—	237,740
Series B–2 preferred stock	—	—	155,598
Series C preferred stock	—	—	1,918,048
Stock options	778,385	665,216	357,991
Restricted stock	513,943	438,939	240,280
Total anti–dilutive common share equivalents	1,292,328	1,104,155	7,432,747