Consolidated Statement Of Changes In Stockholders' Equity (USD $) In Thousands, except Share data	Common Stock [Member]	Additional Paid In Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Total
Balance at Dec. 30, 2014	$ 24	$ 133,883	$ (10,000)	$ 87,076	$ 210,983
Balance, shares at Dec. 30, 2014	23,443,046
Net income				5,394	5,394
Share-based compensation costs		580			580
Stock option exercises, including tax effects, shares
Balance at Mar. 24, 2015	$ 24	$ 134,463	$ (10,000)	$ 92,470	$ 216,957
Balance, shares at Mar. 24, 2015	23,443,046