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STOCK BASED COMPENSATION (Narrative) (Details)
12 Months Ended
Jan. 22, 2013
item
shares
Aug. 31, 2017
item
shares
Aug. 31, 2016
shares
Aug. 31, 2015
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of equity awards issued | item   3    
Reissued treasury shares   0 0 0
Minimum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period   1 year    
Maximum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period   10 years    
2013 Equity Incentive Award Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares authorized 600,000 944,905    
Number of previous equity incentive plans | item 3      
2013 Equity Incentive Award Plan [Member] | Maximum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares authorized 1,233,897