Common Stock and Earnings (Loss) Per Share (Common and Preferred Stock) (Details)	12 Months Ended
	Dec. 28, 2024 vote $ / shares shares	Dec. 30, 2023 $ / shares shares
Class of Stock [Line Items]
Conversion ratio (in shares)	1
Votes Per Share of Class B Common Stock (in votes) | vote	20
Common Class A
Class of Stock [Line Items]
Common stock, shares authorized (in shares)	80,000,000	80,000,000
Common stock, par value (in dollars per share) | $ / shares	$ 3	$ 3
Common stock, shares issued (in shares)	13,997,446	14,409,281
Common Class B
Class of Stock [Line Items]
Common stock, shares authorized (in shares)	16,000,000	16,000,000
Common stock, par value (in dollars per share) | $ / shares	$ 3	$ 3
Common stock, shares issued (in shares)	1,249,302	1,121,129
Common Class C
Class of Stock [Line Items]
Common stock, shares authorized (in shares)	200,000,000
Common stock, par value (in dollars per share) | $ / shares	$ 3
Common stock, shares issued (in shares)	0
Preferred Stock
Class of Stock [Line Items]
Common stock, shares authorized (in shares)	16,000,000