Note 9 - Short-Term Debt (Details) (USD $)	6 Months Ended			6 Months Ended									0 Months Ended	1 Months Ended		0 Months Ended
	Sep. 28, 2014	Sep. 29, 2013	Mar. 30, 2014	Sep. 28, 2014 Scenario 1 [Member] Term Loan Credit Facility [Member] Bridge Facility [Member] Initial Duration Following the Initial Funding Date [Member]	Sep. 28, 2014 Scenario 1 [Member] Term Loan Credit Facility [Member] Bridge Facility [Member] After the Initial Duration Following the Initial Funding Date [Member]	Sep. 28, 2014 Scenario 1 [Member] Term Loan Credit Facility [Member] Bridge Facility [Member]	Sep. 28, 2014 Scenario 2 [Member] Term Loan Credit Facility [Member] Bridge Facility [Member] Initial Duration Following the Initial Funding Date [Member]	Sep. 28, 2014 Scenario 2 [Member] Term Loan Credit Facility [Member] Bridge Facility [Member] After the Initial Duration Following the Initial Funding Date [Member]	Sep. 28, 2014 Scenario 2 [Member] Term Loan Credit Facility [Member] Bridge Facility [Member]	Sep. 28, 2014 Term Loan Credit Facility [Member] Bridge Facility [Member] Federal Funds Effective Swap Rate [Member]	Sep. 28, 2014 Term Loan Credit Facility [Member] Bridge Facility [Member] London Interbank Offered Rate (LIBOR) [Member]	Sep. 28, 2014 Term Loan Credit Facility [Member] Bridge Facility [Member] Base Rate [Member]	May 27, 2014 Term Loan Credit Facility [Member] Bridge Facility [Member]	Jun. 29, 2014 Term Loan Credit Facility [Member] Bridge Facility [Member]	May 27, 2014 Term Loan Credit Facility [Member] Bridge Facility [Member]	Jun. 09, 2014 CTBC [Member]	Jun. 09, 2014 CTBC [Member]	Sep. 28, 2014 Certificates of Deposit [Member]
Note 9 - Short-Term Debt (Details) [Line Items]
Proceeds from Issuance of Debt (in Dollars)	$ 91,000,000	$ 0											$ 65,000,000			$ 26,000,000
Debt Instrument, Interest Rate, Stated Percentage																	3.25%
Restricted Cash and Cash Equivalents, Current (in Dollars)	26,000,000																	26,000,000
Debt Instrument, Face Amount (in Dollars)															90,000,000
Initial Duration Following the Initial Funding Date						90 days			90 days
Debt Instrument, Basis Spread on Variable Rate				7.50%	8.50%		8.50%	9.50%		0.50%	1.00%
Debt Instrument, Interest Rate, Effective Percentage Rate Range, Minimum											1.50%	2.50%
Debt Instrument, Interest Rate, Effective Percentage														8.65%
Repayments of Debt (in Dollars)	$ 65,000,000	$ 0												$ 26,000,000