BASIS OF PRESENTATION and ACCOUNTING POLICIES Revenue Recognition (Details) - USD ($)	3 Months Ended	6 Months Ended
	Jan. 27, 2018	Jan. 27, 2018
Cost of Sales [Member]
Revenue from External Customer [Line Items]
Prior Period Reclassification Adjustment	$ 294,000	$ 341,000
Operating Expense [Member]
Revenue from External Customer [Line Items]
Prior Period Reclassification Adjustment	$ 1,181,000	$ 2,094,000