Note 4 - Debt (Detail) (USD $) In Millions, unless otherwise specified	Jul. 28, 2012
Line of Credit Facility, Maximum Borrowing Capacity	$ 75
Debt Instrument, Basis Spread on Variable Rate	0.50%
Line of Credit Facility, Amount Outstanding	2.4
Line of Credit Facility, Remaining Borrowing Capacity	72.6
Statutory Accounting Practices, Retained Earnings Not Available for Dividends	$ 1.2
Minimum [Member]
Debt Instrument, Basis Spread on Variable Rate	0.30%
Maximum [Member]
Debt Instrument, Basis Spread on Variable Rate	0.90%