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FAIR VALUE MEASUREMENTS (Tables)
6 Months Ended
Feb. 28, 2019
FAIR VALUE MEASUREMENTS [Abstract]  
Assets and Liabilities Measured at Fair Value on a Recurring Basis
The following table provides information on the assets and liabilities measured at fair value on a recurring basis as of February 28, 2019:

        
Fair Value Measurement Using:
    
  
Fair Value
  
Cost /
Other Value
  
Quoted Prices in
Active Markets
for Identical
Assets
(Level 1)
  
Significant
Other
Observable
Inputs
(Level 2)
  
Significant
Unobservable
Inputs
(Level 3)
  
Accumulated
Unrealized
Gains and
(Losses)
 
U.S. Treasury debt securities
 
$
6,938,600
  
$
6,925,900
  
$
  
$
6,938,600
  
$
  
$
12,700
 
Total
 
$
6,938,600
  
$
6,925,900
  
$
  
$
6,938,600
  
$
  
$
12,700
 

The following table provides information on the assets and liabilities measured at fair value on a recurring basis as of August 31, 2018:

        
Fair Value Measurement Using:
    
  
Fair Value
  
Cost /
Other Value
  
Quoted Prices in
Active Markets
for Identical
Assets
(Level 1)
  
Significant
Other
Observable
Inputs
(Level 2)
  
Significant
Unobservable
Inputs
(Level 3)
  
Accumulated
Unrealized
Gains and
(Losses)
 
U.S. Treasury debt securities
 
$
8,718,000
  
$
8,644,900
  
$
  
$
8,718,000
  
$
  
$
66,400
 
Total
 
$
8,718,000
  
$
8,644,900
  
$
  
$
8,718,000
  
$
  
$
66,400