Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 30, 2021	Mar. 31, 2020
Earnings Per Share [Abstract]
Net loss	$ (1,977)	$ (5,835)
Shares:
Basic weighted average shares outstanding (in shares)	45,098,028	44,142,220
Effect of dilutive securities (in shares)	0	0
Diluted weighted average shares outstanding (in shares)	45,098,028	44,142,220
Loss per share:
Basic loss per share (USD per share)	$ (0.04)	$ (0.13)
Diluted loss per share (USD per share)	$ (0.04)	$ (0.13)
Anti-dilutive securities
Antidilutive securities excluded from computation of loss per share	769,732	3,413,108