CONSOLIDATED CONDENSED BALANCE SHEETS (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 24, 2012	Dec. 31, 2011	Mar. 19, 2011
Receivables allowance (in Dollars)	$ 939	$ 938	$ 1,184
Preferred stock, shares authorized	1,000,000	1,000,000	1,000,000
Preferred stock, par value (in Dollars per share)	$ 0	$ 0	$ 0
Preferred stock, shares issued	0	0	0
Common stock, shares authorized	30,000,000	30,000,000	30,000,000
Common stock , shares issued	12,909,132	12,833,948	12,812,943
Common stock, shares outstanding	12,909,132	12,883,948	12,812,943
Common stock, par value (in Dollars per share)	$ 0	$ 0	$ 0