Note 7 - Income Taxes (Details) (USD $)	12 Months Ended
	May 03, 2014		Apr. 27, 2013	Apr. 28, 2012	Apr. 30, 2011
Note 7 - Income Taxes (Details) [Line Items]
Unrecognized Tax Benefits	$ 2,123,000		$ 4,349,000	$ 4,548,000	$ 4,687,000
Unrecognized Tax Benefits, Decrease Resulting from Current Period Tax Positions	2,100,000
Changes in Income Tax if All Uncertain Tax Positions Prevail	1,400,000
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations	2,494,000	[1]	614,000	547,000
Unrecognized Tax Benefits, Interest on Income Taxes Accrued	351,000
Unrecognized Tax Benefits, Period Increase (Decrease)	(163,000)
Review of Federal Income Tax Returns Three Years Ended April 2013 [Member] | Internal Revenue Service (IRS) [Member]
Note 7 - Income Taxes (Details) [Line Items]
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations	$ 1,907,000

[1] Includes $1,907 related to the Internal Revenue Service review of the Company's federal income tax returns for the three years ended April 2013 noted above.