CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Jun. 28, 2014	Dec. 28, 2013
Trade receivables, allowances (in Dollars)	$ 1,068	$ 1,738
Common stock, par value (in Dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized	75,000,000	75,000,000
Common stock, shares outstanding	28,669,398	27,114,339
Common stock, shares issued	29,650,497	28,095,438
Treasury stock, shares	981,099	981,099