Note 11 - Stockholders' Equity (Detail) (USD $)	9 Months Ended	135 Months Ended
	Dec. 23, 2012	Dec. 23, 2012
Treasury Stock, Shares, Acquired	20,458	4,511,944
Treasury Stock, Value, Acquired, Cost Method (in Dollars)	$ 592,000	$ 50,905,000
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased	387,015	387,015
Common Stock, Capital Shares Reserved for Future Issuance	5,280,940	5,280,940