Interest Expense (Tables)
 6 Months Ended
Feb. 28, 2014
Interest Expense [Abstract]  
Schedule of the Components of Interest Expense
 
   
Three Months Ended
    
Six Months Ended
  
   
February 28,
    
February 28,
    
February 28,
    
February 28,
  
   
2014
    
2013
    
2014
    
2013
  
                         
Revolving credit facility
   $ 246     $ 345     $ 497     $ 375  
Amortization of debt issuance costs
     100       50       194       70  
Less, interest capitalized
     (346 )     (395 )     (691 )     (445 )
Interest expense, net
   $ -     $ -     $ -     $ -