Net Income (Loss) Per Share (Tables)

3 Months Ended

Apr. 01, 2018

Earnings Per Share [Abstract]

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

The following table sets forth the calculation of basic and diluted net loss per share:

	Three Months Ended
	April 1, 2018			April 2, 2017
Basic net loss per share:
Net loss	$	(3,102	)	$	(5,596	)
Weighted average common shares outstanding	35,665,811			35,384,223
Basic net loss per share	$	(0.09	)	$	(0.16	)
Diluted net loss per share:
Net loss	$	(3,102	)	$	(5,596	)
Shares used in computing diluted net loss per share	35,665,811			35,384,223
Diluted net loss per share	$	(0.09	)	$	(0.16	)
Shares excluded from diluted net loss per share computations (1)	10,233,980			10,207,697

(1) Shares issuable upon conversion of preferred stock and non-vested shares were excluded from the computation of diluted net loss per share because their effect would have been anti-dilutive.