Consolidated Balance Sheets (Parenthetical) - $ / shares	Sep. 29, 2015	Dec. 30, 2014
Preferred stock, par value (USD per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (USD per share)	$ 0.01	$ 0.01
Common stock, shares authorized	180,000,000	180,000,000
Common stock, shares, issued	30,005,350	29,820,340
Common stock, shares, outstanding	29,598,100	29,820,340
Treasury stock, shares	474,826	67,586