SIGNIFICANT ACCOUNTING POLICIES SIGNIFICANT ACCOUNTING POLICIES (Details 9) - USD ($) $ in Thousands	12 Months Ended
	Jul. 29, 2017	Jul. 30, 2016	Aug. 01, 2015
Recently Issued Pronouncements [Abstract]
Tax deficit associated with stock plans	$ 1,320	$ 83
Tax benefit associated with stock plans			$ 2,746
Deferred income taxes	40,635	35,228
Debt Issuance Costs, Noncurrent, Net	$ 1,500	$ 1,600