Note 18 - Income Taxes (Details) - Reconciliations of Income Tax Provision at the Statutory Rate to Provision for (Benefit from) Income Tax (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Dec. 29, 2013	Mar. 30, 2014	Mar. 31, 2013	Apr. 01, 2012
Reconciliations of Income Tax Provision at the Statutory Rate to Provision for (Benefit from) Income Tax [Abstract]
Income tax benefit at statutory rate		$ (937)	$ 593	$ (10,061)
State income taxes, net of federal tax benefit		(1)	60	(824)
Deferred tax assets not benefited		(1,972)	(378)	11,967
Tax credits		(757)	(539)	(1,021)
Stock-based compensation		(427)	258	432
Foreign rate differential		156	148	(373)
Prior year tax expense true-up		(10)	11	12
Fair value adjustment		(3,732)
Other, net		(798)	(1,342)	(81)
Provision for (benefit from) income taxes	$ (1,300)	$ (8,478)	$ (1,189)	$ 51