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BUSINESS ACTIVITY AND SIGNIFICANT ACCOUNTING POLICIES BUSINESS ACTIVITY AND SIGNIFICANT ACCOUNTING POLICIES (Details 2) (Details) - Adjustments for New Accounting Pronouncement [Member]
Jul. 31, 2017
USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]  
Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block] $ (835,000)
Retained Earnings [Member]  
New Accounting Pronouncements or Change in Accounting Principle [Line Items]  
Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block] (1,252,000)
Additional Paid-in Capital [Member]  
New Accounting Pronouncements or Change in Accounting Principle [Line Items]  
Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block] $ 2,087,000