CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Dec. 29, 2016	Dec. 31, 2015
Preferred Stock, par (in dollars per share)	$ 1	$ 1
Preferred Stock, authorized	1,000,000	1,000,000
Preferred Stock, issued	0	0
Cost of Common Stock in treasury, shares	3,517,951	3,525,657
Common Stock [Member]
Common Stock, par (in dollars per share)	$ 1	$ 1
Common Stock, authorized	50,000,000	50,000,000
Common Stock, issued	22,489,976	22,478,541
Class B Common Stock [Member]
Common Stock, par (in dollars per share)	$ 1	$ 1
Common Stock, authorized	33,000,000	33,000,000
Common Stock, issued	8,699,540	8,710,972
Common Stock, outstanding	8,699,540	8,710,972