Net Income Per Share (Details 1) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012
Potential shares of Cadence's common stock excluded
Total potential common shares excluded	15,749	16,843	13,977	19,679
2013 Warrants
Potential shares of Cadence's common stock excluded
Total potential common shares excluded	6,830	6,830	6,830	6,830
Options to purchase shares of common stock
Potential shares of Cadence's common stock excluded
Total potential common shares excluded	5,639	10,003	6,048	12,767
Non-vested shares of restricted stock
Potential shares of Cadence's common stock excluded
Total potential common shares excluded	3,280	10	1,099	82