Net Income Per Share (Details 1) In Thousands, unless otherwise specified	12 Months Ended
	Jan. 03, 2015		Dec. 28, 2013		Dec. 29, 2012
Potential shares of Cadence's common stock excluded
Total potential common shares excluded	2,791		13,649		18,401
2013 Warrants
Potential shares of Cadence's common stock excluded
Total potential common shares excluded	0	[1]	6,830	[1]	6,830	[1]
Options to purchase shares of common stock
Potential shares of Cadence's common stock excluded
Total potential common shares excluded	2,773		5,973		11,501
Non-vested shares of restricted stock
Potential shares of Cadence's common stock excluded
Total potential common shares excluded	18		846		70

[1] These warrants expired on various dates from February 2014 through April 2014.