Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Dec. 31, 2016	Jan. 02, 2016
Accounts receivable, allowances	$ 25,874	$ 17,486
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	34,000,000	34,000,000
Common stock, shares issued (in shares)	22,626,922	22,420,785
Common stock, shares outstanding (in shares)	22,626,922	22,420,785
Treasury stock, shares (in shares)	409,115	362,748