Net Income (Loss) Per Common Share (Tables)

9 Months Ended

Sep. 30, 2017

Earnings Per Share [Abstract]

Reconciliation of the Numerators and Denominators of Basic and Diluted Net Loss Per Common Share

The following is a reconciliation of the numerators and denominators of basic and diluted net loss per common share:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
Numerator:
Net loss used to compute net loss per common share:
Basic	$	(7,742	)	$	(7,714	)	$	(22,639	)	$	(16,993	)
Adjustment for change in fair value of liability classified stock options		(20	)		—			(182	)		—
Diluted	$	(7,762	)	$	(7,714	)	$	(22,821	)	$	(16,993	)
Denominator:
Weighted average number of common shares:
Basic		17,998,420			15,268,964			17,980,608			14,690,357
Adjustment for dilutive effect of stock options		11,559			—			19,458			—
Diluted		18,009,979			15,268,964			18,000,066			14,690,357
Net loss per common share - basic	$	(0.43	)	$	(0.51	)	$	(1.26	)	$	(1.16	)
Net loss per common share - diluted	$	(0.43	)	$	(0.51	)	$	(1.27	)	$	(1.16	)