COMMITMENTS (Details Textual)		12 Months Ended
	Sep. 04, 2007 USD ($)	Jul. 31, 2015 USD ($) a	Jul. 31, 2014 USD ($)
Commitments And Contingencies [Line Items]
Area of Land | a		4,000
Operating Leases, Rent Expense		$ 60,000	$ 77,000
Manufacturing Costs	$ 471,000
Cost of Utilities	150,000
Payments to Suppliers		1,700,000
Payments On Approval Of Product Prototype Concepts And Designs	$ 150,000
Purchase Obligation		13,900,000
Exer Rest Units [Member]
Commitments And Contingencies [Line Items]
Purchase Obligation, Due in Next Twelve Months		2,600,000
Purchase Obligation, Due in Second Year		4,100,000
Purchase Obligation, Due in Third Year		8,800,000
Sing Lin [Member]
Commitments And Contingencies [Line Items]
Payables to Customers		$ 41,000