Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 30, 2012	Jan. 01, 2012
Allowance for doubtful accounts	$ 1,490	$ 1,521
Convertible Preferred Stock
Preferred Stock, par value	$ 100	$ 100
Preferred Stock, shares authorized	50,000	50,000
Preferred Stock, shares issued	0	0
Nonconvertible preferred stock
Preferred Stock, par value	$ 100	$ 100
Preferred Stock, shares authorized	50,000	50,000
Preferred Stock, shares issued	0	0
Preferred Stock
Preferred Stock, par value	$ 0.01	$ 0.01
Preferred Stock, shares authorized	20,000,000	20,000,000
Preferred Stock, shares issued	0	0
Common Stock
Common stock, par value	$ 1.00	$ 1.00
Common stock, shares authorized	30,000,000	30,000,000
Common stock, shares issued	10,203,821	10,203,821
Treasury stock, shares	3,062,374	3,062,374
Class B Common Stock
Common stock, par value	$ 1.00	$ 1.00
Common stock, shares authorized	10,000,000	10,000,000
Common stock, shares issued	2,716,956	2,694,636
Treasury stock, shares	628,114	628,114
Class C Common Stock
Common stock, par value	$ 1.00	$ 1.00
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares issued	0	0