Basic and Diluted Net Income (Loss) Per Share (Tables)

9 Months Ended

Sep. 30, 2016

Sep. 30, 2015

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]


(A)	For the three and nine months ended September 30, 2016 and 2015, the following equity awards, by type, were excluded from the calculation, as their effect would have been anti-dilutive (in thousands):



	Three Months Ended		Nine Months Ended
	September 30,		September 30,
	2016	2015	2016	2015
Stock options	3,951	3,019	3,951	3,019
Restricted stock units	130	192	130	192
Performance based restricted stock units^(B)	851	1,550	851	1,550
Total equity award shares excluded	4,932	4,761	4,932	4,761


(B)	Performance based restricted stock units are presented based on attainment of 100% of the performance goals being met which is the maximum amount that may be earned.

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

A reconciliation of the numerator and the denominator used to calculate basic and diluted net loss per share is as follows (in thousands, except per share amounts):



	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2016			2015			2016			2015
Numerator
Net loss	$	(2,638	)	$	(2,066	)	$	(6,194	)	$	(13,238	)
Denominator — Basic
Weighted average shares used to calculate net loss per share, basic	38,056			36,830			37,402			36,740
Denominator — Diluted
Weighted average shares used to calculate net loss per share, basic	38,056			36,830			37,402			36,740
Effect of dilutive restricted stock units ^(A)	—			—			—			—
Effect of dilutive stock options ^(A)	—			—			—			—
Weighted average shares used to calculate net loss per share, diluted	38,056			36,830			37,402			36,740
Net loss per share
Basic	$	(0.07	)	$	(0.06	)	$	(0.17	)	$	(0.36	)
Diluted	$	(0.07	)	$	(0.06	)	$	(0.17	)	$	(0.36	)