Note 12 - Stockholders' Equity (Details) (USD $)	9 Months Ended	147 Months Ended			0 Months Ended
	Dec. 29, 2013	Dec. 29, 2013	Dec. 13, 2013	Jun. 05, 2013	Dec. 13, 2013 MSI Agreement [Member]
Note 12 - Stockholders' Equity (Details) [Line Items]
Treasury Stock, Shares, Acquired	5,378	4,584,941
Treasury Stock, Value, Acquired, Cost Method (in Dollars)	$ 262,000	$ 53,660,000
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased	314,018	314,018
Minimum Percentage of Common Stock Acquired by a Person or Group which Triggers Exercise of New Rights				15.00%
New Right Purchase Price (in Dollars per share)				$ 100.00
Common Stock, Capital Shares Reserved for Future Issuance	10,153,959	10,153,959		10,188,600
Stock Repurchase Program, Authorized Amount (in Dollars)					$ 5,000,000
Stock Repurchase Program, Number of Shares Authorized to be Repurchased			800,000