Net Income Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Oct. 01, 2022	Sep. 30, 2023	Oct. 01, 2022
Numerator:
Net income — basic	$ 8,596	$ 11,877	$ 27,022	$ 34,946
Less: net income attributable to participating shares	29	42	98	130
Net income — diluted	$ 8,567	$ 11,835	$ 26,924	$ 34,816
Denominator:
Weighted average shares outstanding — basic (in shares)	6,977,000	7,119,000	7,026,000	7,247,000
Effect of dilutive stock options and restricted stock units (in shares)	106,000	127,000	112,000	129,000
Weighted average shares outstanding — diluted (in shares)	7,083,000	7,246,000	7,138,000	7,376,000
Basic (in dollars per share)	$ 1.22	$ 1.66	$ 3.83	$ 4.81
Diluted (in dollars per share)	$ 1.21	$ 1.63	$ 3.78	$ 4.72
Anti-dilutive share-based awards excluded (in shares)	6,185,000	997	5,875,000	249