CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical)	12 Months Ended
	Dec. 28, 2014	Dec. 29, 2013	Dec. 30, 2012
Statement of Stockholders' Equity [Abstract]
Stock options, shares	169,286	914,272	176,400
Stock conversions, shares	1,426	324	500
Restricted stock unit vested, shares	241,607	104,054	92,847
401(k) - Company stock match, shares	0	303,066	490,031