Note 11 - Net Income (Loss) Per Share (Details) - Summary of Net Income (Loss) per Share (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Mar. 30, 2014	Dec. 29, 2013	Sep. 29, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 30, 2012	Sep. 30, 2012	Jul. 01, 2012	Mar. 30, 2014	Mar. 31, 2013	Apr. 01, 2012
Summary of Net Income (Loss) per Share [Abstract]
Net income (loss) (in Dollars)	$ 147	$ (1,634)	$ 6,482	$ 806	$ 1,672	$ 1,523	$ 263	$ (576)	$ 5,801	$ 2,882	$ (28,056)
Shares used in computation of net income (loss) per share:
Basic									47,291	45,809	44,796
Effect of options and awards									1,532	667
Diluted	48,778	47,529	49,150	48,085	47,379	46,438	46,046	45,388	48,823	46,476	44,796
Net income (loss) per share:
Basic (in Dollars per share)	$ 0.00	$ (0.03)	$ 0.14	$ 0.02	$ 0.04	$ 0.03	$ 0.01	$ (0.01)	$ 0.12	$ 0.06	$ (0.63)
Diluted (in Dollars per share)	$ 0.00	$ (0.03)	$ 0.13	$ 0.02	$ 0.04	$ 0.03	$ 0.01	$ (0.01)	$ 0.12	$ 0.06	$ (0.63)