Earnings (Loss) Per Share (Details) - Basic and Diluted Earnings (loss) Per Share: (USD $) In Thousands, except Per Share data, unless otherwise specified	4 Months Ended		9 Months Ended
	Oct. 05, 2013	Oct. 06, 2012	Oct. 05, 2013	Oct. 06, 2012
Basic and Diluted Earnings (loss) Per Share: [Abstract]
Net earnings (loss) (in Dollars)	$ 6,023	$ 14,604	$ 17,012	$ (64,910)
Net earnings (loss) per share-basic:
Weighted-average shares outstanding	12,992	12,962	12,996	12,963
Net earnings (loss) per share-basic (in Dollars per share)	$ 0.46	$ 1.13	$ 1.31	$ (5.01)
Net earnings (loss) per share-diluted:
Weighted-average shares outstanding	12,992	12,962	12,996	12,963
Shares contingently issuable	140	78	97
Weighted-average shares and potential dilutive shares outstanding	13,132	13,040	13,093	12,963
Net earnings (loss) per share-diluted (in Dollars per share)	$ 0.46	$ 1.12	$ 1.30	$ (5.01)