Note 5 - Property Plant And Equipment (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jul. 28, 2012	Jul. 30, 2011	Jul. 31, 2010
Buildings and Improvements, Gross	$ 6,284	$ 6,906
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	9,391	9,207
Depreciation	386	303	285
Villa Sistemi Medicali S.p.A. [Member]
Buildings and Improvements, Gross	3,806
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	$ 1,400