CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified	Mar. 29, 2014	Dec. 28, 2013
CONDENSED CONSOLIDATED BALANCE SHEETS
Accounts receivable, allowance for doubtful accounts (in dollars)	$ 201	$ 219
Property and equipment, accumulated depreciation (in dollars)	$ 35,397	$ 33,880
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	50,000	50,000
Common stock, shares issued	19,807	19,845
Common stock, shares outstanding	19,807	19,845
Treasury stock, shares	368	368