Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Jan. 01, 2022	Jan. 02, 2021
Numerator:
Net income — basic	$ 43,619	$ 41,679	$ 24,507
Less: net income attributable to participating shares	167	175	93
Net income — diluted	$ 43,452	$ 41,504	$ 24,414
Denominator:
Basic weighted average shares outstanding (shares)	7,218	7,423	7,768
Stock options and restricted stock units (shares)	137	198	180
Diluted (in shares)	7,355	7,621	7,948
Net income per share:
Basic (in dollars per share)	$ 6.02	$ 5.59	$ 3.14
Diluted (in dollars per share)	$ 5.91	$ 5.45	$ 3.07
Calculation of common stock equivalents for purposes of computing diluted weighted average shares outstanding
Anti-dilutive securities excluded from EPS computation (in shares)	0	3	80