Net Income Per Share (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 01, 2022	Jan. 02, 2021	Dec. 28, 2019
Net Income (Loss) Available to Common Stockholders, Diluted [Abstract]
Net income, as reported	$ 41,679	$ 24,507	$ 20,747
Less: net income attributable to participating shares	175	93	55
Net income available to common shareholders	$ 41,504	$ 24,414	$ 20,692
Reconciliation of basic to diluted weighted average shares of common stock outstanding
Basic weighted average shares outstanding (shares)	7,423,000	7,768,000	7,866,000
Stock options and restricted stock units (shares)	198,000	180,000	301,000
Diluted weighted average shares outstanding (shares)	7,621,000	7,948,000	8,167,000
Calculation of common stock equivalents for purposes of computing diluted weighted average shares outstanding
Anti-dilutive securities excluded from EPS computation (in shares)	3,000	80,000	62,000