Summary of Significant Accounting Policies - Weighted Average Number of Shares Outstanding Used to Compute Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Apr. 02, 2022	Apr. 03, 2021
Accounting Policies [Abstract]
Net income	$ 8,099	$ 6,695
Weighted-average number of common shares outstanding
Basic weighted-average common shares outstanding (in shares)	11,989	11,791
Dilutive potential common shares (in shares)	339	459
Diluted weighted-average common shares outstanding (in shares)	12,328	12,250
Earnings per share
Basic (in dollars per share)	$ 0.68	$ 0.57
Diluted (in dollars per share)	$ 0.66	$ 0.55