CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Jul. 12, 2014	Dec. 28, 2013	Jul. 13, 2013
Receivables allowance (in dollars)	$ 783	$ 1,105	$ 719
Preferred stock, shares authorized	1,000,000	1,000,000	1,000,000
Preferred stock, shares issued	0	0	0
Common stock, shares authorized	30,000,000	30,000,000	30,000,000
Common stock, shares issued	13,909,099	13,656,557	13,497,972
Common stock, shares outstanding	13,909,099	13,656,557	13,497,972