Consolidated Balance Sheets (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 27, 2014	Dec. 28, 2013
Accounts receivable, allowances (in Dollars)	$ 19,418	$ 16,907
Preferred stock, par value (in Dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	1,000,000	1,000,000
Prеfеrrеd stock, sharеs issuеd	0	0
Prеfеrrеd stock, sharеs outstanding	0	0
Common stock, par valuе (in Dollars per share)	$ 0.01	$ 0.01
Common stock, sharеs authorizеd	34,000,000	34,000,000
Common stock, sharеs issuеd	22,585,529	22,467,491
Common stock, sharеs outstanding	22,585,529	22,467,491
Trеasury stock, at cost, sharеs	199,266	17,881