Earnings Per Share (Details) - shares	3 Months Ended		9 Months Ended
	Oct. 02, 2021	Oct. 03, 2020	Oct. 02, 2021	Oct. 03, 2020
Basic [Abstract]
Weighted average shares outstanding	6,270,147	6,237,758	6,259,380	6,235,747
Diluted [Abstract]
Weighted average shares outstanding	6,270,147	6,237,758	6,259,380	6,235,747
Dilutive stock appreciation rights	2,140	1,722	2,140	1,722
Denominator for diluted earnings per share (in shares)	6,272,287	6,239,480	6,261,520	6,237,469