Consolidated Statements of Stockholders` Equity (USD $) In Thousands, unless otherwise specified	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]	Total
Balance at Jan. 02, 2010	$ 22,792	$ 106,705	$ 261,821	$ (10,756)	$ (30,003)	$ 350,559
Balance (in Shares) at Jan. 02, 2010	12,812
Net earnings (loss)			50,941			50,941
Other comprehensive income:
Deferred loss on hedging activities, net of tax				426		426
Minimum pension liability adjustment, net of tax				(679)		(679)
Minimum other post-retirement liability adjustment, net of tax				25		25
Dividends declared			(8,930)			(8,930)
Share-based compensation		7,566	(248)		793	8,111
Share-based compensation (in Shares)	24
Stock appreciation rights		570				570
Common stock issued for performance units	4	(4)
Common stock transferred from rabbi trust					(1,200)	(1,200)
Common stock transferred from rabbi trust (in Shares)	(85)
Repurchase of shares					(22,781)	(22,781)
Repurchase of shares (in Shares)	(643)
Tax shortfall associated with compensation plans		(38)				(38)
Balance at Jan. 01, 2011	22,796	114,799	303,584	(10,984)	(53,191)	377,004
Balance (in Shares) at Jan. 01, 2011	12,108
Net earnings (loss)			35,805			35,805
Other comprehensive income:
Deferred loss on hedging activities, net of tax				264		264
Minimum pension liability adjustment, net of tax				(4,006)		(4,006)
Minimum other post-retirement liability adjustment, net of tax				19		19
Dividends declared			(8,739)			(8,739)
Share-based compensation		2,976	(180)		951	3,747
Share-based compensation (in Shares)	28
Stock appreciation rights		570				570
Common stock issued for performance units	82	(82)
Common stock issued for performance units (in Shares)	50
Tax shortfall associated with compensation plans		(41)				(41)
Balance at Dec. 31, 2011	22,878	118,222	330,470	(14,707)	(52,240)	404,623
Balance (in Shares) at Dec. 31, 2011	12,186
Net earnings (loss)			(93,872)			(93,872)
Other comprehensive income:
Minimum pension liability adjustment, net of tax				(1,066)		(1,066)
Minimum other post-retirement liability adjustment, net of tax				68		68
Dividends declared			(8,816)			(8,816)
Share-based compensation		(4,042)	(621)		534	(4,129)
Share-based compensation (in Shares)	16
Stock appreciation rights		(485)				(485)
Common stock issued for performance units	120	(120)
Common stock issued for performance units (in Shares)	72
Tax shortfall associated with compensation plans		66				66
Balance at Dec. 29, 2012	$ 22,998	$ 113,641	$ 227,161	$ (15,705)	$ (51,706)	$ 296,389
Balance (in Shares) at Dec. 29, 2012	12,274