Computation of Earnings Per Share - Schedule of Earnings Per Share, Basic and Diluted (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Apr. 02, 2021	Apr. 03, 2020
Earnings Per Share Reconciliation [Abstract]
Earnings from continuing operations	$ 7,984	$ (407)
Earnings from discontinued operations, net of tax	0	692
Net earnings	$ 7,984	$ 285
Basic:
Weighted average number of shares outstanding (in shares)	27,815	27,809
Basic earnings per share from continuing operations	$ 0.29	$ (0.01)
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share	0.00	0.02
Basic earnings per share (in usd per share)	$ 0.29	$ 0.01
Diluted:
Weighted average shares issuable on exercise of dilutive stock options (in shares)	52	82
Diluted (in shares)	27,867	27,891
Diluted earnings per share from continuing operations	$ 0.29	$ (0.01)
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share	0.00	0.02
Diluted earnings per share (in usd per share)	$ 0.29	$ 0.01