Net Income (Loss) Per Common Share (Tables)

6 Months Ended

Jun. 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 June 30,						Six Months Ended June 30,
	2017			2016			2017			2016
Numerator:
Net loss used to compute net loss per common share:
Basic	$	(7,380	)	$	(6,016	)	$	(14,897	)	$	(9,279	)
Adjustment for change in fair value of liability classified stock options		(30	)		(58	)		(162	)		(100	)
Diluted	$	(7,410	)	$	(6,074	)	$	(15,059	)	$	(9,379	)
Denominator:
Weighted average number of common shares:
Basic		17,997,194			14,408,108			17,971,702			14,401,054
Adjustment for dilutive effect of stock options		18,554			26,494			23,407			27,106
Diluted		18,015,748			14,434,602			17,995,109			14,428,160
Net loss per common share - basic	$	(0.41	)	$	(0.42	)	$	(0.83	)	$	(0.64	)
Net loss per common share - diluted	$	(0.41	)	$	(0.42	)	$	(0.84	)	$	(0.65	)