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Fair Value Measurements (Tables)
12 Months Ended
Aug. 31, 2017
Fair Value Disclosures [Abstract]  
Estimated fair value and carrying value of debt instruments
The estimated fair value and carrying value of our outstanding debt instruments (excluding the carrying value of equity and mezzanine equity components of our convertible notes) were as follows:
As of
 
2017
 
2016
 
 
Fair
Value
 
Carrying
Value
 
Fair
Value
 
Carrying
Value
Notes and MMJ Creditor Payments
$
8,793

 
$
8,423

 
$
7,257

 
$
7,050

Convertible notes
 
3,901

 
1,521

 
2,408

 
1,454